SN74LS68FN datasheet, PDF - EEWORLD Datasheet

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SN74LS68FN: DescriptionLS SERIES, ASYN NEGATIVE EDGE TRIGGERED 4-BIT UP DECADE COUNTER, PQCC20; Categorylogic logic; File Size114KB，5 Pages; ManufacturerTexas Instruments; Websitehttp://www.ti.com.cn/

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SN74LS68FN Overview

LS SERIES, ASYN NEGATIVE EDGE TRIGGERED 4-BIT UP DECADE COUNTER, PQCC20

SN74LS68FN Parametric

Parameter Name	Attribute value
Is it Rohs certified?	incompatible
Maker	Texas Instruments
package instruction	QCCJ, LDCC20,.4SQ
Reach Compliance Code	not_compliant
Other features	DIVIDE BY 2, DIVIDE BY 5 AND DIVIDE BY 10 FUNCTIONS
Counting direction	UP
series	LS
JESD-30 code	S-PQCC-J20
length	8.9662 mm
Load capacitance (CL)	30 pF
Load/preset input	NO
Logic integrated circuit type	DECADE COUNTER
Operating mode	ASYNCHRONOUS
Number of digits	4
Number of functions	3
Number of terminals	20
Maximum operating temperature	70 °C
Minimum operating temperature
Package body material	PLASTIC/EPOXY
encapsulated code	QCCJ
Encapsulate equivalent code	LDCC20,.4SQ
Package shape	SQUARE
Package form	CHIP CARRIER
Peak Reflow Temperature (Celsius)	NOT SPECIFIED
Maximum supply current (ICC)	54 mA
propagation delay (tpd)	40 ns
Certification status	Not Qualified
Maximum seat height	4.57 mm
Maximum supply voltage (Vsup)	5.25 V
Minimum supply voltage (Vsup)	4.75 V
Nominal supply voltage (Vsup)	5 V
surface mount	YES
technology	TTL
Temperature level	COMMERCIAL
Terminal form	J BEND
Terminal pitch	1.27 mm
Terminal location	QUAD
Maximum time at peak reflow temperature	NOT SPECIFIED
Trigger type	NEGATIVE EDGE
width	8.9662 mm
minfmax	20 MHz

SN74LS68FN Related Products

	SN74LS68FN	SN74LS69FN	SN54LS68J	SN74LS69J	SN54LS68FK	SN74LS68J	SN74LS69N
Description	LS SERIES, ASYN NEGATIVE EDGE TRIGGERED 4-BIT UP DECADE COUNTER, PQCC20	LS SERIES, ASYN NEGATIVE EDGE TRIGGERED 4-BIT UP BINARY COUNTER, PQCC20	LS SERIES, ASYN NEGATIVE EDGE TRIGGERED 4-BIT UP DECADE COUNTER, CDIP16	LS SERIES, ASYN NEGATIVE EDGE TRIGGERED 4-BIT UP BINARY COUNTER, CDIP16	LS SERIES, ASYN NEGATIVE EDGE TRIGGERED 4-BIT UP DECADE COUNTER, CQCC20	LS SERIES, ASYN NEGATIVE EDGE TRIGGERED 4-BIT UP DECADE COUNTER, CDIP16	LS SERIES, ASYN NEGATIVE EDGE TRIGGERED 4-BIT UP BINARY COUNTER, PDIP16
Is it Rohs certified?	incompatible	incompatible	incompatible	incompatible	incompatible	incompatible	incompatible
package instruction	QCCJ, LDCC20,.4SQ	QCCJ, LDCC20,.4SQ	DIP, DIP16,.3	DIP, DIP16,.3	QCCN, LCC20,.35SQ	DIP, DIP16,.3	DIP, DIP16,.3
Reach Compliance Code	not_compliant	not_compliant	not_compliant	not_compliant	not_compliant	not_compliant	not_compliant
Other features	DIVIDE BY 2, DIVIDE BY 5 AND DIVIDE BY 10 FUNCTIONS	DIVIDE BY 2, DIVIDE BY 8 AND DIVIDE BY 16 FUNCTIONS	DIVIDE BY 2, DIVIDE BY 5 AND DIVIDE BY 10 FUNCTIONS	DIVIDE BY 2, DIVIDE BY 8 AND DIVIDE BY 16 FUNCTIONS	DIVIDE BY 2, DIVIDE BY 5 AND DIVIDE BY 10 FUNCTIONS	DIVIDE BY 2, DIVIDE BY 5 AND DIVIDE BY 10 FUNCTIONS	DIVIDE BY 2, DIVIDE BY 8 AND DIVIDE BY 16 FUNCTIONS
Counting direction	UP	UP	UP	UP	UP	UP	UP
series	LS	LS	LS	LS	LS	LS	LS
JESD-30 code	S-PQCC-J20	S-PQCC-J20	R-CDIP-T16	R-GDIP-T16	S-CQCC-N20	R-GDIP-T16	R-PDIP-T16
length	8.9662 mm	8.9662 mm	19.56 mm	19.56 mm	8.89 mm	19.56 mm	19.305 mm
Load capacitance (CL)	30 pF	30 pF	30 pF	30 pF	30 pF	30 pF	30 pF
Load/preset input	NO	NO	NO	NO	NO	NO	NO
Logic integrated circuit type	DECADE COUNTER	BINARY COUNTER	DECADE COUNTER	BINARY COUNTER	DECADE COUNTER	DECADE COUNTER	BINARY COUNTER
Operating mode	ASYNCHRONOUS	ASYNCHRONOUS	ASYNCHRONOUS	ASYNCHRONOUS	ASYNCHRONOUS	ASYNCHRONOUS	ASYNCHRONOUS
Number of digits	4	4	4	4	4	4	4
Number of functions	3	3	3	3	3	3	3
Number of terminals	20	20	16	16	20	16	16
Maximum operating temperature	70 °C	70 °C	125 °C	70 °C	125 °C	70 °C	70 °C
Package body material	PLASTIC/EPOXY	PLASTIC/EPOXY	CERAMIC, METAL-SEALED COFIRED	CERAMIC, GLASS-SEALED	CERAMIC, METAL-SEALED COFIRED	CERAMIC, GLASS-SEALED	PLASTIC/EPOXY
encapsulated code	QCCJ	QCCJ	DIP	DIP	QCCN	DIP	DIP
Encapsulate equivalent code	LDCC20,.4SQ	LDCC20,.4SQ	DIP16,.3	DIP16,.3	LCC20,.35SQ	DIP16,.3	DIP16,.3
Package shape	SQUARE	SQUARE	RECTANGULAR	RECTANGULAR	SQUARE	RECTANGULAR	RECTANGULAR
Package form	CHIP CARRIER	CHIP CARRIER	IN-LINE	IN-LINE	CHIP CARRIER	IN-LINE	IN-LINE
Peak Reflow Temperature (Celsius)	NOT SPECIFIED	NOT SPECIFIED	NOT SPECIFIED	NOT SPECIFIED	NOT SPECIFIED	NOT SPECIFIED	NOT SPECIFIED
Maximum supply current (ICC)	54 mA	54 mA	54 mA	54 mA	54 mA	54 mA	54 mA
propagation delay (tpd)	40 ns	54 ns	40 ns	54 ns	40 ns	40 ns	54 ns
Certification status	Not Qualified	Not Qualified	Not Qualified	Not Qualified	Not Qualified	Not Qualified	Not Qualified
Maximum seat height	4.57 mm	4.57 mm	5.08 mm	5.08 mm	2.03 mm	5.08 mm	5.08 mm
Maximum supply voltage (Vsup)	5.25 V	5.25 V	5.5 V	5.25 V	5.5 V	5.25 V	5.25 V
Minimum supply voltage (Vsup)	4.75 V	4.75 V	4.5 V	4.75 V	4.5 V	4.75 V	4.75 V
Nominal supply voltage (Vsup)	5 V	5 V	5 V	5 V	5 V	5 V	5 V
surface mount	YES	YES	NO	NO	YES	NO	NO
technology	TTL	TTL	TTL	TTL	TTL	TTL	TTL
Temperature level	COMMERCIAL	COMMERCIAL	MILITARY	COMMERCIAL	MILITARY	COMMERCIAL	COMMERCIAL
Terminal form	J BEND	J BEND	THROUGH-HOLE	THROUGH-HOLE	NO LEAD	THROUGH-HOLE	THROUGH-HOLE
Terminal pitch	1.27 mm	1.27 mm	2.54 mm	2.54 mm	1.27 mm	2.54 mm	2.54 mm
Terminal location	QUAD	QUAD	DUAL	DUAL	QUAD	DUAL	DUAL
Maximum time at peak reflow temperature	NOT SPECIFIED	NOT SPECIFIED	NOT SPECIFIED	NOT SPECIFIED	NOT SPECIFIED	NOT SPECIFIED	NOT SPECIFIED
Trigger type	NEGATIVE EDGE	NEGATIVE EDGE	NEGATIVE EDGE	NEGATIVE EDGE	NEGATIVE EDGE	NEGATIVE EDGE	NEGATIVE EDGE
width	8.9662 mm	8.9662 mm	7.62 mm	7.62 mm	8.89 mm	7.62 mm	7.62 mm
minfmax	20 MHz	25 MHz	20 MHz	25 MHz	20 MHz	20 MHz	25 MHz
Maker	Texas Instruments	-	-	Texas Instruments	Texas Instruments	Texas Instruments	Texas Instruments

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