Parallel I/O Ports

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Part	Manufacturer	Peripheral IC Type	Temperature Grade	Terminal Form	No. of Terminals	Package Code	Package Shape	Package Body Material	Surface Mount	Maximum Supply Voltage	Screening Level	Address Bus Width	No. of Bits	Power Supplies (V)	Package Style (Meter)	Package Equivalence Code	Minimum Supply Voltage	Maximum Operating Temperature	CPU Family	Minimum Operating Temperature	Terminal Finish	Terminal Position	No. of Ports	Maximum Seated Height	Width	Additional Features	External Data Bus Width	Maximum Clock Frequency	Maximum Time At Peak Reflow Temperature (s)	Peak Reflow Temperature (C)	Length	No. of Timers	Technology	Maximum Supply Current	Nominal Supply Voltage	Memory Organization	Sub-Category	Terminal Pitch	JESD-30 Code	Moisture Sensitivity Level (MSL)	Qualification	JESD-609 Code	No. of I/O Lines
MD82C55A-5/B	Intersil	PARALLEL IO PORT, GENERAL PURPOSE	MILITARY	THROUGH-HOLE	40	DIP	RECTANGULAR	CERAMIC, GLASS-SEALED	NO	5.5 V	38535Q/M;38534H;883B			5	IN-LINE	DIP40,.6	4.5 V	125 Cel		-55 Cel	Tin/Lead (Sn/Pb)	DUAL	3	5.72 mm	15.24 mm								CMOS	5 mA	5 V		Parallel IO Port	2.54 mm	R-GDIP-T40		Not Qualified	e0	24
N82C55A-2	Rochester Electronics	PARALLEL IO PORT, GENERAL PURPOSE	COMMERCIAL	J BEND	44	QCCJ	SQUARE	PLASTIC/EPOXY	YES	5.5 V					CHIP CARRIER		4.5 V	70 Cel		0 Cel		QUAD	3	4.57 mm	16.6 mm						16.6 mm		CMOS		5 V			1.27 mm	S-PQCC-J44				24
P8156H-2	Intel	PARALLEL IO PORT, GENERAL PURPOSE	COMMERCIAL	THROUGH-HOLE	40	DIP	RECTANGULAR	PLASTIC/EPOXY	NO	5.5 V			14	5	IN-LINE	DIP40,.6	4.5 V	70 Cel	8085	0 Cel	TIN LEAD	DUAL	3	5.08 mm	15.24 mm		8				52.26 mm	1	NMOS	125 mA	5 V	256X8	Parallel IO Port	2.54 mm	R-PDIP-T40		Not Qualified	e0	22
P8255A-5	Rochester Electronics	PARALLEL IO PORT, GENERAL PURPOSE	COMMERCIAL	THROUGH-HOLE	40	DIP	RECTANGULAR	PLASTIC/EPOXY	NO	5.5 V					IN-LINE		4.5 V	70 Cel		0 Cel		DUAL	3	5.08 mm	15.24 mm				NOT SPECIFIED	NOT SPECIFIED	52.26 mm		NMOS		5 V			2.54 mm	R-PDIP-T40				24
P82C55A-2	Rochester Electronics	PARALLEL IO PORT, GENERAL PURPOSE	COMMERCIAL	THROUGH-HOLE	40	DIP	RECTANGULAR	PLASTIC/EPOXY	NO	5.5 V					IN-LINE		4.5 V	70 Cel		0 Cel		DUAL	3	5.08 mm	15.24 mm				NOT SPECIFIED	NOT SPECIFIED	52.26 mm		CMOS		5 V			2.54 mm	R-PDIP-T40				24
PCA9538APWJ	NXP Semiconductors	PARALLEL IO PORT, GENERAL PURPOSE	INDUSTRIAL	GULL WING	24	TSSOP	RECTANGULAR	PLASTIC/EPOXY	YES	5.5 V			8	1.8/5	SMALL OUTLINE, THIN PROFILE, SHRINK PITCH	TSSOP16,.25	1.65 V	85 Cel		-40 Cel	NICKEL PALLADIUM GOLD	DUAL	1	1.1 mm	4.4 mm				30	260	7.8 mm		CMOS		1.8 V		Parallel IO Port	.65 mm	R-PDSO-G24	1	Not Qualified	e4	8
8406602QA	Renesas Electronics	PARALLEL IO PORT, GENERAL PURPOSE	MILITARY	THROUGH-HOLE	40	DIP	RECTANGULAR	CERAMIC, GLASS-SEALED	NO	5.5 V	MIL-STD-883				IN-LINE		4.5 V	125 Cel		-55 Cel	TIN LEAD	DUAL	3	5.72 mm	15.24 mm								CMOS		5 V			2.54 mm	R-GDIP-T40		Qualified	e0	24
BU1850MUV-E2	ROHM	PARALLEL IO PORT, GENERAL PURPOSE	OTHER	NO LEAD	16	HVQCCN	SQUARE	UNSPECIFIED	YES	3.6 V			8	1.8	CHIP CARRIER, HEAT SINK/SLUG, VERY THIN PROFILE	LCC16,.12SQ,20	1.65 V	85 Cel		-30 Cel		QUAD	0	1 mm	3 mm				NOT SPECIFIED	NOT SPECIFIED	3 mm		CMOS		1.8 V		Parallel IO Port	.5 mm	S-XQCC-N16		Not Qualified		8
CS82C55A	Renesas Electronics	PARALLEL IO PORT, GENERAL PURPOSE	COMMERCIAL	J BEND	44	QCCJ	SQUARE	PLASTIC/EPOXY	YES	5.5 V				5	CHIP CARRIER	LDCC44,.7SQ	4.5 V	70 Cel		0 Cel	TIN LEAD	QUAD	3	4.57 mm	16.585 mm						16.585 mm		CMOS	8 mA	5 V		Parallel IO Port	1.27 mm	S-PQCC-J44	1	Not Qualified	e0	24
ID82C55A	Renesas Electronics	PARALLEL IO PORT, GENERAL PURPOSE	INDUSTRIAL	THROUGH-HOLE	40	DIP	RECTANGULAR	CERAMIC, GLASS-SEALED	NO	5.5 V					IN-LINE		4.5 V	85 Cel		-40 Cel	TIN LEAD	DUAL	3	5.72 mm	15.24 mm								CMOS		5 V			2.54 mm	R-GDIP-T40		Not Qualified	e0	24
ID82C55A/+	Intersil		INDUSTRIAL	THROUGH-HOLE	40	DIP	RECTANGULAR	CERAMIC	NO					5	IN-LINE	DIP40,.6		85 Cel		-40 Cel	Tin/Lead (Sn/Pb)	DUAL											CMOS	8 mA	5 V		Parallel IO Port	2.54 mm	R-XDIP-T40			e0
IMQ82C55AZ	Renesas Electronics	PARALLEL IO PORT, GENERAL PURPOSE		GULL WING	44	QFP	SQUARE	PLASTIC/EPOXY	YES	5.5 V					FLATPACK	QFP44,.5SQ,32	4.5 V	85 Cel		-40 Cel	MATTE TIN	QUAD	3	2.45 mm	10 mm		8		30	260	10 mm		CMOS		5 V			.8 mm	S-PQFP-G44	3		e3	24
IMQ82C55AZ96	Renesas Electronics	PARALLEL IO PORT, GENERAL PURPOSE		GULL WING	44	QFP	SQUARE	PLASTIC/EPOXY	YES	5.5 V					FLATPACK	QFP44,.5SQ,32	4.5 V	85 Cel		-40 Cel	MATTE TIN	QUAD	3	2.45 mm	10 mm		8		30	260	10 mm		CMOS		5 V			.8 mm	S-PQFP-G44	3		e3	24
IS82C55A-596	Renesas Electronics	PARALLEL IO PORT, GENERAL PURPOSE	INDUSTRIAL	J BEND	44	QCCJ	SQUARE	PLASTIC/EPOXY	YES	5.5 V				5	CHIP CARRIER	LDCC44,.7SQ	4.5 V	85 Cel		-40 Cel	TIN LEAD	QUAD	3	4.57 mm	16.585 mm						16.585 mm		CMOS	5 mA	5 V		Parallel IO Port	1.27 mm	S-PQCC-J44		Not Qualified	e0	24
P8243	Rochester Electronics	PARALLEL IO PORT, GENERAL PURPOSE	COMMERCIAL	THROUGH-HOLE	24	DIP	RECTANGULAR	PLASTIC/EPOXY	NO	5.5 V					IN-LINE		4.5 V	70 Cel		0 Cel		DUAL	4	5.08 mm	15.24 mm	AND, OR ACCUMULATOR TO PORT			NOT SPECIFIED	NOT SPECIFIED	31.685 mm		NMOS		5 V			2.54 mm	R-PDIP-T24				16
SX00-0B00-00	Broadcom	PARALLEL IO PORT, GENERAL PURPOSE		UNSPECIFIED		XMA	SQUARE	UNSPECIFIED	NO						MICRO ELECTRONIC ASSEMBLY						TIN SILVER COPPER	UNSPECIFIED	3							250			CMOS						S-XXMA-X	4		e1	16
TMP8243P	Toshiba		COMMERCIAL	THROUGH-HOLE	24	DIP	RECTANGULAR	PLASTIC/EPOXY	NO				4	5	IN-LINE	DIP24,.6		70 Cel		0 Cel	Tin/Lead (Sn/Pb)	DUAL											MOS		5 V		Parallel IO Port	2.54 mm	R-PDIP-T24		Not Qualified	e0
TMP8255AP-5	Toshiba	PARALLEL IO PORT, GENERAL PURPOSE	COMMERCIAL	THROUGH-HOLE	40	DIP	RECTANGULAR	PLASTIC/EPOXY	NO	5.25 V					IN-LINE		4.75 V	70 Cel		0 Cel	TIN LEAD	DUAL	3	4.8 mm	15.24 mm						50.7 mm		CMOS		5 V			2.54 mm	R-PDIP-T40		Not Qualified	e0	24
TMP82C43P	Toshiba	PARALLEL IO PORT, GENERAL PURPOSE	INDUSTRIAL	THROUGH-HOLE	24	DIP	RECTANGULAR	PLASTIC/EPOXY	NO	6 V					IN-LINE		4 V	85 Cel		-40 Cel	TIN LEAD	DUAL	4	4.8 mm	15.24 mm		4				32 mm		CMOS	2 mA	5 V			2.54 mm	R-PDIP-T24		Not Qualified	e0	16
TMP82C55AP-2	Toshiba	PARALLEL IO PORT, GENERAL PURPOSE	INDUSTRIAL	THROUGH-HOLE	40	DIP	RECTANGULAR	PLASTIC/EPOXY	NO	5.5 V					IN-LINE		4.5 V	85 Cel		-40 Cel	TIN LEAD	DUAL	3	4.8 mm	15.24 mm		8				50.7 mm		CMOS	5 mA	5 V			2.54 mm	R-PDIP-T40		Not Qualified	e0	24
CDP1851CE	Intersil	PARALLEL IO PORT, GENERAL PURPOSE	INDUSTRIAL	THROUGH-HOLE	40	DIP	RECTANGULAR	PLASTIC/EPOXY	NO	6.5 V			10	5	IN-LINE	DIP40,.6	4 V	85 Cel		-40 Cel	TIN LEAD	DUAL	2	6.35 mm	15.24 mm						51.75 mm		CMOS		5 V		Parallel IO Port	2.54 mm	R-PDIP-T40		Not Qualified	e0	20
CDP1851E	Intersil	PARALLEL IO PORT, GENERAL PURPOSE	INDUSTRIAL	THROUGH-HOLE	40	DIP	RECTANGULAR	PLASTIC/EPOXY	NO	10.5 V			10	5/10	IN-LINE	DIP40,.6	4 V	85 Cel		-40 Cel	TIN LEAD	DUAL	2	6.35 mm	15.24 mm						51.75 mm		CMOS		10 V		Parallel IO Port	2.54 mm	R-PDIP-T40		Not Qualified	e0	20
D8255A	Rochester Electronics	PARALLEL IO PORT, GENERAL PURPOSE	COMMERCIAL	THROUGH-HOLE	40	DIP	RECTANGULAR	UNSPECIFIED	NO	5.5 V					IN-LINE		4.5 V	70 Cel		0 Cel		DUAL	3						NOT SPECIFIED	NOT SPECIFIED			CMOS		5 V				R-XDIP-T40				24
HD63B21P	Hitachi	PARALLEL IO PORT, GENERAL PURPOSE	COMMERCIAL EXTENDED	THROUGH-HOLE	40	DIP	RECTANGULAR	PLASTIC/EPOXY	NO	5.5 V				5	IN-LINE	DIP40,.6	4.5 V	75 Cel		-20 Cel	TIN LEAD	DUAL	2	5.08 mm	15.24 mm		8	2 MHz			52.8 mm		CMOS	6 mA	5 V		Parallel IO Port	2.54 mm	R-PDIP-T40		Not Qualified	e0	16
LD8155H	Rochester Electronics	PARALLEL IO PORT, GENERAL PURPOSE	COMMERCIAL	THROUGH-HOLE	40	DIP	RECTANGULAR	CERAMIC, GLASS-SEALED	NO	5.5 V					IN-LINE		4.5 V	70 Cel		0 Cel		DUAL	3	5.72 mm	15.24 mm				NOT SPECIFIED	NOT SPECIFIED	52.325 mm		NMOS		5 V			2.54 mm	R-GDIP-T40				22
MAX7310AUE-T	Maxim Integrated	PARALLEL IO PORT, GENERAL PURPOSE	AUTOMOTIVE	GULL WING	16	TSSOP	RECTANGULAR	PLASTIC/EPOXY	YES	5.5 V			8	2.5/5	SMALL OUTLINE, THIN PROFILE, SHRINK PITCH	TSSOP16,.25	2.3 V	125 Cel		-40 Cel	TIN LEAD	DUAL	1	1.1 mm	4.4 mm						5 mm		BICMOS		3.3 V		Parallel IO Ports	.65 mm	R-PDSO-G16	1	Not Qualified	e0	8
MAX7310AUE+T	Analog Devices	PARALLEL IO PORT, GENERAL PURPOSE	AUTOMOTIVE	GULL WING	16	TSSOP	RECTANGULAR	PLASTIC/EPOXY	YES	5.5 V			8	2.5/5	SMALL OUTLINE, THIN PROFILE, SHRINK PITCH	TSSOP16,.25	2.3 V	125 Cel		-40 Cel	Matte Tin (Sn) - annealed	DUAL	1	1.1 mm	4.4 mm				30	260	5 mm		BICMOS		3.3 V		Parallel IO Ports	.65 mm	R-PDSO-G16	1	Not Qualified	e3	8
MAX7311AAG	NXP Semiconductors		AUTOMOTIVE	GULL WING	24	SSOP	RECTANGULAR	PLASTIC/EPOXY	YES				16	2/5.5	SMALL OUTLINE, SHRINK PITCH	SSOP24,.3		125 Cel		-40 Cel		DUAL											BICMOS				Parallel IO Port	.635 mm	R-PDSO-G24		Not Qualified
MAX7311AAG+	Analog Devices	PARALLEL IO PORT, GENERAL PURPOSE	AUTOMOTIVE	GULL WING	24	SSOP	RECTANGULAR	PLASTIC/EPOXY	YES	5.5 V			16	3.3	SMALL OUTLINE, SHRINK PITCH	SSOP24,.3	2 V	125 Cel		-40 Cel	Matte Tin (Sn) - annealed	DUAL	1	1.99 mm	5.29 mm				30	260	8.2 mm		BICMOS		3.3 V		Parallel IO Ports	.65 mm	R-PDSO-G24	1	Not Qualified	e3	16
MAX7311AUG	NXP Semiconductors		AUTOMOTIVE	GULL WING	24	TSSOP	RECTANGULAR	PLASTIC/EPOXY	YES				16	2/5.5	SMALL OUTLINE, THIN PROFILE, SHRINK PITCH	TSSOP24,.25		125 Cel		-40 Cel		DUAL											BICMOS				Parallel IO Port	.635 mm	R-PDSO-G24		Not Qualified
MAX7311AUG+	Analog Devices	PARALLEL IO PORT, GENERAL PURPOSE	AUTOMOTIVE	GULL WING	24	VSSOP	SQUARE	PLASTIC/EPOXY	YES	5.5 V			16	3.3	SMALL OUTLINE, VERY THIN PROFILE, SHRINK PITCH	TSSOP24,.25	2 V	125 Cel		-40 Cel	Matte Tin (Sn) - annealed	DUAL	1	.8 mm	4 mm				30	260	4 mm		BICMOS		3.3 V		Parallel IO Ports	.5 mm	S-PDSO-G24	1	Not Qualified	e3	16
MAX7315ATE-T	Maxim Integrated	PARALLEL IO PORT, GENERAL PURPOSE	AUTOMOTIVE	NO LEAD	16	HVQCCN	SQUARE	UNSPECIFIED	YES	3.6 V			8	2.5/3.3	CHIP CARRIER, HEAT SINK/SLUG, VERY THIN PROFILE	LCC16,.12SQ,20	2 V	125 Cel		-40 Cel	TIN LEAD	QUAD	1	.8 mm	3 mm						3 mm		BICMOS		3.3 V		Parallel IO Port	.5 mm	S-XQCC-N16	1	Not Qualified	e0	8
MAX7315ATE+T	Analog Devices	PARALLEL IO PORT, GENERAL PURPOSE	AUTOMOTIVE	NO LEAD	16	HVQCCN	SQUARE	UNSPECIFIED	YES	3.6 V			8	2.5/3.3	CHIP CARRIER, HEAT SINK/SLUG, VERY THIN PROFILE	LCC16,.12SQ,20	2 V	125 Cel		-40 Cel	Matte Tin (Sn) - annealed	QUAD	1	.8 mm	3 mm				30	260	3 mm		BICMOS		3.3 V		Parallel IO Port	.5 mm	S-XQCC-N16	1	Not Qualified	e3	8
MAX7322AEE	Maxim Integrated		AUTOMOTIVE	GULL WING	16	SSOP	RECTANGULAR	PLASTIC/EPOXY	YES					2/5	SMALL OUTLINE, SHRINK PITCH	SSOP16,.25		125 Cel		-40 Cel	Tin/Lead (Sn/Pb)	DUAL															Parallel IO Port	.635 mm	R-PDSO-G16		Not Qualified	e0
MAX7322AEE+	Analog Devices	PARALLEL IO PORT, GENERAL PURPOSE	AUTOMOTIVE	GULL WING	16	SSOP	RECTANGULAR	PLASTIC/EPOXY	YES	5.5 V				2/5	SMALL OUTLINE, SHRINK PITCH	SSOP16,.25	1.71 V	125 Cel		-40 Cel	Matte Tin (Sn) - annealed	DUAL	1	1.75 mm	3.9 mm				30	260	4.89 mm		BICMOS		3.3 V		Parallel IO Port	.635 mm	R-PDSO-G16	1	Not Qualified	e3	0
MCP23016T-I/ML	Microchip Technology	PARALLEL IO PORT, GENERAL PURPOSE	INDUSTRIAL	NO LEAD	28	HVQCCN	SQUARE	PLASTIC/EPOXY	YES	5.5 V	TS 16949		16		CHIP CARRIER, VERY THIN PROFILE, HEAT SINK/SLUG	LCC28,.24SQ,25	2 V	85 Cel		-40 Cel	MATTE TIN	QUAD	2	1 mm	6 mm						6 mm		CMOS		5 V			.65 mm	S-PQCC-N28			e3	16
MCS9805CV-BA	Asix Electronics	PARALLEL IO PORT, PRINTER INTERFACE	COMMERCIAL	GULL WING	128	FQFP	RECTANGULAR	PLASTIC/EPOXY	YES	5.25 V					FLATPACK, FINE PITCH		4.75 V	70 Cel		0 Cel		QUAD	1	3.27 mm	14 mm				NOT SPECIFIED	NOT SPECIFIED	20 mm		CMOS		5 V			.5 mm	R-PQFP-G128				8
PCA9534ARGVR	Texas Instruments	PARALLEL IO PORT, GENERAL PURPOSE	INDUSTRIAL	NO LEAD	16	HVQCCN	SQUARE	PLASTIC/EPOXY	YES	5.5 V		8	8	2.5/5	CHIP CARRIER, HEAT SINK/SLUG, VERY THIN PROFILE	LCC16,.16SQ,25	2.3 V	85 Cel		-40 Cel	Nickel/Palladium/Gold (Ni/Pd/Au)	QUAD	1	1 mm	4 mm			.4 MHz	NOT SPECIFIED	260	4 mm		CMOS	.175 mA	5 V		Parallel IO Port	.65 mm	S-PQCC-N16	2	Not Qualified	e4	8
PCAL9554BPWJ	NXP Semiconductors	PARALLEL IO PORT, GENERAL PURPOSE	INDUSTRIAL	GULL WING	16	TSSOP	RECTANGULAR	PLASTIC/EPOXY	YES	5.5 V			8	1.8/5	SMALL OUTLINE, THIN PROFILE, SHRINK PITCH	TSSOP16,.25	1.65 V	85 Cel		-40 Cel		DUAL	1	1.1 mm	4.4 mm					260	5 mm		CMOS		1.8 V		Parallel IO Port	.65 mm	R-PDSO-G16	1	Not Qualified		8
PCD8584T	Philips Semiconductors		COMMERCIAL	GULL WING	20	SOP	RECTANGULAR	PLASTIC/EPOXY	YES				8	5	SMALL OUTLINE	SOP20,.4		70 Cel		-20 Cel	Tin/Lead (Sn/Pb)	DUAL											CMOS		5 V		Parallel IO Port	1.27 mm	R-PDSO-G20		Not Qualified	e0
SN74LS612JD	Texas Instruments	PARALLEL IO PORT, GENERAL PURPOSE	COMMERCIAL	THROUGH-HOLE	40	DIP	RECTANGULAR	CERAMIC, METAL-SEALED COFIRED	NO					5	IN-LINE	DIP40,.6		70 Cel		0 Cel		DUAL	1						NOT SPECIFIED	NOT SPECIFIED			TTL		5 V		Other Microprocessor ICs	2.54 mm	R-CDIP-T40		Not Qualified		12
SNJ54LS610JD	Texas Instruments	PARALLEL IO PORT, GENERAL PURPOSE	MILITARY	THROUGH-HOLE	40	DIP	RECTANGULAR	CERAMIC, METAL-SEALED COFIRED	NO	5.5 V	38535Q/M;38534H;883B				IN-LINE	DIP40,.6	4.5 V	125 Cel		-55 Cel		DUAL	1						NOT SPECIFIED	NOT SPECIFIED			CMOS		5 V		Other Microprocessor ICs	2.54 mm	R-CDIP-T40		Not Qualified		12
SN74LS610JD	Texas Instruments	PARALLEL IO PORT, GENERAL PURPOSE	COMMERCIAL	THROUGH-HOLE	40	DIP	RECTANGULAR	CERAMIC, METAL-SEALED COFIRED	NO						IN-LINE	DIP40,.6		70 Cel		0 Cel		DUAL	1						NOT SPECIFIED	NOT SPECIFIED			TTL				Other Microprocessor ICs	2.54 mm	R-CDIP-T40		Not Qualified		12
SN54LS612JD	Texas Instruments	PARALLEL IO PORT, GENERAL PURPOSE	MILITARY	THROUGH-HOLE	40	DIP	RECTANGULAR	CERAMIC, METAL-SEALED COFIRED	NO	5.5 V				5	IN-LINE	DIP40,.6	4.5 V	125 Cel		-55 Cel		DUAL	1						NOT SPECIFIED	NOT SPECIFIED			CMOS		5 V		Other Microprocessor ICs	2.54 mm	R-CDIP-T40		Not Qualified		12
SN74LS612FN	Texas Instruments	PARALLEL IO PORT, GENERAL PURPOSE	COMMERCIAL	J BEND	44	QCCJ	SQUARE	PLASTIC/EPOXY	YES	5.25 V				5	CHIP CARRIER	LDCC(UNSPEC)	4.75 V	70 Cel		0 Cel		QUAD	1	4.57 mm	16.5862 mm				NOT SPECIFIED	NOT SPECIFIED	16.5862 mm		TTL		5 V		Other Microprocessor ICs	1.27 mm	S-PQCC-J44		Not Qualified		12
SN74LS610N	Texas Instruments	PARALLEL IO PORT, GENERAL PURPOSE	COMMERCIAL	THROUGH-HOLE	40	DIP	RECTANGULAR	PLASTIC/EPOXY	NO						IN-LINE	DIP40,.6		70 Cel		0 Cel		DUAL	1	5.08 mm	15.24 mm				NOT SPECIFIED	NOT SPECIFIED	52.455 mm		TTL				Other Microprocessor ICs	2.54 mm	R-PDIP-T40		Not Qualified		12
SN54LS610FK	Texas Instruments	PARALLEL IO PORT, GENERAL PURPOSE	MILITARY	NO LEAD	44	QCCN	SQUARE	CERAMIC, METAL-SEALED COFIRED	YES	5.5 V					CHIP CARRIER		4.5 V	125 Cel		-55 Cel		QUAD	1	2.03 mm	16.51 mm						16.51 mm		TTL		5 V			1.27 mm	S-CQCC-N44		Not Qualified		12
SNJ54LS613FK	Texas Instruments	PARALLEL IO PORT, GENERAL PURPOSE	MILITARY	NO LEAD	44	QCCN	SQUARE	CERAMIC, METAL-SEALED COFIRED	YES	5.5 V					CHIP CARRIER		4.5 V	125 Cel		-55 Cel		QUAD	1	2.03 mm	16.51 mm						16.51 mm		TTL		5 V			1.27 mm	S-CQCC-N44		Not Qualified		12

Parallel I/O Ports

Parallel I/O (Input/Output) ports are a type of interface that allows a microcontroller or microprocessor to communicate with other devices in a parallel fashion. This means that multiple bits of data can be transmitted or received simultaneously, as opposed to serial communication which transmits or receives data one bit at a time.

Parallel I/O ports are commonly found in a wide range of electronic devices, including computers, printers, and industrial control systems. They typically consist of a number of input and output lines, with each line representing a single bit of data. The number of lines can vary depending on the specific device, with some systems having only a few lines while others may have dozens or even hundreds.

One of the advantages of parallel I/O ports is their ability to transfer large amounts of data quickly and efficiently. This makes them particularly useful in applications where real-time data acquisition or high-speed communication is required. For example, parallel ports are commonly used in printers and other peripherals to transfer large amounts of data quickly.

However, one of the limitations of parallel I/O ports is that they require a large number of pins on the microcontroller or microprocessor to accommodate all of the data lines. This can make them difficult to implement in systems with limited space or where a large number of I/O lines are required. In addition, parallel I/O ports can be more susceptible to noise and interference compared to serial communication, which can affect data integrity and transmission speeds.