DM74LS491AN datasheet, PDF - EEWORLD Datasheet

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DM74LS491AN: DescriptionLS SERIES, SYN POSITIVE EDGE TRIGGERED 10-BIT BIDIRECTIONAL BINARY COUNTER, PDIP24, SKINNY, PLASTIC, DIP-24; Categorylogic logic; File Size153KB，6 Pages; ManufacturerTexas Instruments; Websitehttp://www.ti.com.cn/

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DM74LS491AN Overview

LS SERIES, SYN POSITIVE EDGE TRIGGERED 10-BIT BIDIRECTIONAL BINARY COUNTER, PDIP24, SKINNY, PLASTIC, DIP-24

DM74LS491AN Parametric

Parameter Name	Attribute value
Is it Rohs certified?	incompatible
package instruction	DIP, DIP24,.3
Reach Compliance Code	unknown
Other features	6 MIDDLE BITS CAN BE SET H/L AS A GROUP
Counting direction	BIDIRECTIONAL
series	LS
JESD-30 code	R-PDIP-T24
JESD-609 code	e0
length	31.915 mm
Load capacitance (CL)	50 pF
Load/preset input	YES
Logic integrated circuit type	BINARY COUNTER
Maximum Frequency@Nom-Sup	22200000 Hz
MaximumI(ol)	0.024 A
Operating mode	SYNCHRONOUS
Number of digits	10
Number of functions	1
Number of terminals	24
Maximum operating temperature	75 °C
Minimum operating temperature
Output characteristics	3-STATE
Package body material	PLASTIC/EPOXY
encapsulated code	DIP
Encapsulate equivalent code	DIP24,.3
Package shape	RECTANGULAR
Package form	IN-LINE
Peak Reflow Temperature (Celsius)	NOT SPECIFIED
power supply	5 V
Maximum supply current (ICC)	180 mA
propagation delay (tpd)	15 ns
Certification status	Not Qualified
Maximum seat height	5.08 mm
Maximum supply voltage (Vsup)	5.25 V
Minimum supply voltage (Vsup)	4.75 V
Nominal supply voltage (Vsup)	5 V
surface mount	NO
technology	TTL
Temperature level	COMMERCIAL EXTENDED
Terminal surface	Tin/Lead (Sn/Pb)
Terminal form	THROUGH-HOLE
Terminal pitch	2.54 mm
Terminal location	DUAL
Maximum time at peak reflow temperature	NOT SPECIFIED
Trigger type	POSITIVE EDGE
width	7.62 mm
minfmax	22.2 MHz
Base Number Matches	1

DM74LS491AN Related Products

	DM74LS491AN	DM74LS491AJ	DM54LS491AJ	DM74LS491AV
Description	LS SERIES, SYN POSITIVE EDGE TRIGGERED 10-BIT BIDIRECTIONAL BINARY COUNTER, PDIP24, SKINNY, PLASTIC, DIP-24	LS SERIES, SYN POSITIVE EDGE TRIGGERED 10-BIT BIDIRECTIONAL BINARY COUNTER, CDIP24, SKINNY, CERAMIC, DIP-24	LS SERIES, SYN POSITIVE EDGE TRIGGERED 10-BIT BIDIRECTIONAL BINARY COUNTER, CDIP24, SKINNY, CERAMIC, DIP-24	LS SERIES, SYN POSITIVE EDGE TRIGGERED 10-BIT BIDIRECTIONAL BINARY COUNTER, PQCC28, PLASTIC, CC-28
Is it Rohs certified?	incompatible	incompatible	incompatible	incompatible
package instruction	DIP, DIP24,.3	DIP, DIP24,.3	DIP, DIP24,.3	QCCJ, LDCC28,.5SQ
Reach Compliance Code	unknown	unknown	unknown	unknown
Other features	6 MIDDLE BITS CAN BE SET H/L AS A GROUP	6 MIDDLE BITS CAN BE SET H/L AS A GROUP	6 MIDDLE BITS CAN BE SET H/L AS A GROUP	6 MIDDLE BITS CAN BE SET H/L AS A GROUP
Counting direction	BIDIRECTIONAL	BIDIRECTIONAL	BIDIRECTIONAL	BIDIRECTIONAL
series	LS	LS	LS	LS
JESD-30 code	R-PDIP-T24	R-GDIP-T24	R-GDIP-T24	S-PQCC-J28
JESD-609 code	e0	e0	e0	e0
Load/preset input	YES	YES	YES	YES
Logic integrated circuit type	BINARY COUNTER	BINARY COUNTER	BINARY COUNTER	BINARY COUNTER
Maximum Frequency@Nom-Sup	22200000 Hz	22200000 Hz	15300000 Hz	22200000 Hz
MaximumI(ol)	0.024 A	0.024 A	0.012 A	0.024 A
Operating mode	SYNCHRONOUS	SYNCHRONOUS	SYNCHRONOUS	SYNCHRONOUS
Number of digits	10	10	10	10
Number of functions	1	1	1	1
Number of terminals	24	24	24	28
Maximum operating temperature	75 °C	75 °C	125 °C	75 °C
Output characteristics	3-STATE	3-STATE	3-STATE	3-STATE
Package body material	PLASTIC/EPOXY	CERAMIC, GLASS-SEALED	CERAMIC, GLASS-SEALED	PLASTIC/EPOXY
encapsulated code	DIP	DIP	DIP	QCCJ
Encapsulate equivalent code	DIP24,.3	DIP24,.3	DIP24,.3	LDCC28,.5SQ
Package shape	RECTANGULAR	RECTANGULAR	RECTANGULAR	SQUARE
Package form	IN-LINE	IN-LINE	IN-LINE	CHIP CARRIER
Peak Reflow Temperature (Celsius)	NOT SPECIFIED	NOT SPECIFIED	NOT SPECIFIED	NOT SPECIFIED
power supply	5 V	5 V	5 V	5 V
Maximum supply current (ICC)	180 mA	180 mA	180 mA	180 mA
Certification status	Not Qualified	Not Qualified	Not Qualified	Not Qualified
Maximum seat height	5.08 mm	5.715 mm	5.715 mm	4.57 mm
Maximum supply voltage (Vsup)	5.25 V	5.25 V	5.5 V	5.25 V
Minimum supply voltage (Vsup)	4.75 V	4.75 V	4.5 V	4.75 V
Nominal supply voltage (Vsup)	5 V	5 V	5 V	5 V
surface mount	NO	NO	NO	YES
technology	TTL	TTL	TTL	TTL
Temperature level	COMMERCIAL EXTENDED	COMMERCIAL EXTENDED	MILITARY	COMMERCIAL EXTENDED
Terminal surface	Tin/Lead (Sn/Pb)	Tin/Lead (Sn/Pb)	Tin/Lead (Sn/Pb)	Tin/Lead (Sn/Pb)
Terminal form	THROUGH-HOLE	THROUGH-HOLE	THROUGH-HOLE	J BEND
Terminal pitch	2.54 mm	2.54 mm	2.54 mm	1.27 mm
Terminal location	DUAL	DUAL	DUAL	QUAD
Maximum time at peak reflow temperature	NOT SPECIFIED	NOT SPECIFIED	NOT SPECIFIED	NOT SPECIFIED
Trigger type	POSITIVE EDGE	POSITIVE EDGE	POSITIVE EDGE	POSITIVE EDGE
width	7.62 mm	7.62 mm	7.62 mm	11.43 mm
minfmax	22.2 MHz	22.2 MHz	32 MHz	22.2 MHz
Load capacitance (CL)	50 pF	50 pF	-	50 pF
propagation delay (tpd)	15 ns	15 ns	-	15 ns
Maker	-	Texas Instruments	Texas Instruments	Texas Instruments

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