SN54LS68FK datasheet, PDF - EEWORLD Datasheet

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SN54LS68FK: DescriptionLS SERIES, ASYN NEGATIVE EDGE TRIGGERED 4-BIT UP DECADE COUNTER, CQCC20; Categorylogic logic; File Size114KB，5 Pages; ManufacturerTexas Instruments; Websitehttp://www.ti.com.cn/

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SN54LS68FK Overview

LS SERIES, ASYN NEGATIVE EDGE TRIGGERED 4-BIT UP DECADE COUNTER, CQCC20

SN54LS68FK Parametric

Parameter Name	Attribute value
Is it Rohs certified?	incompatible
Maker	Texas Instruments
package instruction	QCCN, LCC20,.35SQ
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-CQCC-N20
length	8.89 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	125 °C
Minimum operating temperature	-55 °C
Package body material	CERAMIC, METAL-SEALED COFIRED
encapsulated code	QCCN
Encapsulate equivalent code	LCC20,.35SQ
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	2.03 mm
Maximum supply voltage (Vsup)	5.5 V
Minimum supply voltage (Vsup)	4.5 V
Nominal supply voltage (Vsup)	5 V
surface mount	YES
technology	TTL
Temperature level	MILITARY
Terminal form	NO LEAD
Terminal pitch	1.27 mm
Terminal location	QUAD
Maximum time at peak reflow temperature	NOT SPECIFIED
Trigger type	NEGATIVE EDGE
width	8.89 mm
minfmax	20 MHz

SN54LS68FK Related Products

	SN54LS68FK	SN74LS69FN	SN54LS68J	SN74LS68FN	SN74LS69J	SN74LS68J	SN74LS69N
Description	LS SERIES, ASYN NEGATIVE EDGE TRIGGERED 4-BIT UP DECADE COUNTER, CQCC20	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 DECADE COUNTER, PQCC20	LS SERIES, ASYN NEGATIVE EDGE TRIGGERED 4-BIT UP BINARY COUNTER, CDIP16	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	QCCN, LCC20,.35SQ	QCCJ, LDCC20,.4SQ	DIP, DIP16,.3	QCCJ, LDCC20,.4SQ	DIP, DIP16,.3	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 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
Counting direction	UP	UP	UP	UP	UP	UP	UP
series	LS	LS	LS	LS	LS	LS	LS
JESD-30 code	S-CQCC-N20	S-PQCC-J20	R-CDIP-T16	S-PQCC-J20	R-GDIP-T16	R-GDIP-T16	R-PDIP-T16
length	8.89 mm	8.9662 mm	19.56 mm	8.9662 mm	19.56 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	DECADE COUNTER	BINARY 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	20	16	16	16
Maximum operating temperature	125 °C	70 °C	125 °C	70 °C	70 °C	70 °C	70 °C
Package body material	CERAMIC, METAL-SEALED COFIRED	PLASTIC/EPOXY	CERAMIC, METAL-SEALED COFIRED	PLASTIC/EPOXY	CERAMIC, GLASS-SEALED	CERAMIC, GLASS-SEALED	PLASTIC/EPOXY
encapsulated code	QCCN	QCCJ	DIP	QCCJ	DIP	DIP	DIP
Encapsulate equivalent code	LCC20,.35SQ	LDCC20,.4SQ	DIP16,.3	LDCC20,.4SQ	DIP16,.3	DIP16,.3	DIP16,.3
Package shape	SQUARE	SQUARE	RECTANGULAR	SQUARE	RECTANGULAR	RECTANGULAR	RECTANGULAR
Package form	CHIP CARRIER	CHIP CARRIER	IN-LINE	CHIP CARRIER	IN-LINE	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	40 ns	54 ns	40 ns	54 ns
Certification status	Not Qualified	Not Qualified	Not Qualified	Not Qualified	Not Qualified	Not Qualified	Not Qualified
Maximum seat height	2.03 mm	4.57 mm	5.08 mm	4.57 mm	5.08 mm	5.08 mm	5.08 mm
Maximum supply voltage (Vsup)	5.5 V	5.25 V	5.5 V	5.25 V	5.25 V	5.25 V	5.25 V
Minimum supply voltage (Vsup)	4.5 V	4.75 V	4.5 V	4.75 V	4.75 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	YES	NO	NO	NO
technology	TTL	TTL	TTL	TTL	TTL	TTL	TTL
Temperature level	MILITARY	COMMERCIAL	MILITARY	COMMERCIAL	COMMERCIAL	COMMERCIAL	COMMERCIAL
Terminal form	NO LEAD	J BEND	THROUGH-HOLE	J BEND	THROUGH-HOLE	THROUGH-HOLE	THROUGH-HOLE
Terminal pitch	1.27 mm	1.27 mm	2.54 mm	1.27 mm	2.54 mm	2.54 mm	2.54 mm
Terminal location	QUAD	QUAD	DUAL	QUAD	DUAL	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	8.89 mm	8.9662 mm	7.62 mm	8.9662 mm	7.62 mm	7.62 mm	7.62 mm
minfmax	20 MHz	25 MHz	20 MHz	20 MHz	25 MHz	20 MHz	25 MHz
Maker	Texas Instruments	-	-	Texas Instruments	Texas Instruments	Texas Instruments	Texas Instruments

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