74ACT161_01 datasheet, PDF - EEWORLD Datasheet

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74ACT161_01: DescriptionSYNCHRONOUS PRESETTABLE 4-BIT COUNTER; File Size232KB，13 Pages; ManufacturerSTMicroelectronics; Websitehttp://www.st.com/

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74ACT161_01 Overview

SYNCHRONOUS PRESETTABLE 4-BIT COUNTER

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74ACT161

SYNCHRONOUS PRESETTABLE 4-BIT COUNTER

HIGH SPEED:

MAX

= 290MHz (TYP.) at V

= 5V

LOW POWER DISSIPATION:

= 8µA(MAX.) at T

=25°C

COMPATIBLE WITH TTL OUTPUTS

= 2V (MIN.), V

= 0.8V (MAX.)

50Ω TRANSMISSION LINE DRIVING

CAPABILITY

SYMMETRICAL OUTPUT IMPEDANCE:

| = I

= 24mA (MIN)

BALANCED PROPAGATION DELAYS:

PLH

≅

PHL

OPERATING VOLTAGE RANGE:

(OPR) = 4.5V to 5.5V

PIN AND FUNCTION COMPATIBLE WITH

74 SERIES 161

IMPROVED LATCH-UP IMMUNITY

DIP

SOP

TSSOP

ORDER CODES

PACKAGE

DIP

SOP

TSSOP

TUBE

74ACT161B

74ACT161M

T&R

74ACT161MTR

74ACT161TTR

DESCRIPTION

The 74ACT161 is an advanced high-speed CMOS

SYNCRONOUS PRESETTABLE COUNTER

fabricated with sub-micron silicon gate and

double-layer metal wiring C

MOS tecnology. It is a

4 bit binary counter with Asynchronous Clear.

The circuit have four fundamental modes of

operation, in order of preference: synchronous

reset, parallel load, count-up and hold. Four

control inputs, (CLEAR), (LOAD), (PE) and (TE),

determine the mode of operation as shown in the

Truth Table. A LOW signal on CLEAR overrides

counting and parallel loading and sets all outputs

on LOW state. A LOW signal on LOAD overrides

PIN CONNECTION AND IEC LOGIC SYMBOLS

counting and allows information on Parallel Data

inputs to be loaded into the flip-flop on the next

rising edge of CLOCK. With LOAD and CLEAR

HIGH, PE and TE permit counting when both are

HIGH. Conversely, a LOW signal on either PE and

TE inhibits counting.

The CARRY OUTPUT is HIGH when TE is HIGH

and counter is in state 15.

The device is designed to interface directly High

Speed CMOS systems with TTL, NMOS and

CMOS output voltage levels.

All inputs and outputs are equipped with

protection circuits against static discharge, giving

them 2KV ESD immunity and transient excess

voltage.

April 2001

1/13

74ACT161_01 Related Products

	74ACT161_01	74ACT161B	74ACT161M	74ACT161TTR	74ACT161
Description	SYNCHRONOUS PRESETTABLE 4-BIT COUNTER	SYNCHRONOUS PRESETTABLE 4-BIT COUNTER	SYNCHRONOUS PRESETTABLE 4-BIT COUNTER	SYNCHRONOUS PRESETTABLE 4-BIT COUNTER	SYNCHRONOUS PRESETTABLE 4-BIT COUNTER
Is it Rohs certified?	-	conform to	conform to	incompatible	-
Maker	-	STMicroelectronics	STMicroelectronics	STMicroelectronics	-
Parts packaging code	-	DIP	SOIC	TSSOP	-
package instruction	-	DIP, DIP16,.3	SOP, SOP16,.25	TSSOP-16	-
Contacts	-	16	16	16	-
Reach Compliance Code	-	compli	compli	_compli	-
Counting direction	-	UP	UP	UP	-
series	-	ACT	ACT	ACT	-
JESD-30 code	-	R-PDIP-T16	R-PDSO-G16	R-PDSO-G16	-
JESD-609 code	-	e3	e4	e0	-
Load capacitance (CL)	-	50 pF	50 pF	50 pF	-
Load/preset input	-	YES	YES	YES	-
Logic integrated circuit type	-	BINARY COUNTER	BINARY COUNTER	BINARY COUNTER	-
Maximum Frequency@Nom-Su	-	85000000 Hz	85000000 Hz	85000000 Hz	-
MaximumI(ol)	-	0.024 A	0.024 A	0.024 A	-
Operating mode	-	SYNCHRONOUS	SYNCHRONOUS	SYNCHRONOUS	-
Number of digits	-	4	4	4	-
Number of functions	-	1	1	1	-
Number of terminals	-	16	16	16	-
Maximum operating temperature	-	125 °C	125 °C	125 °C	-
Minimum operating temperature	-	-55 °C	-55 °C	-55 °C	-
Package body material	-	PLASTIC/EPOXY	PLASTIC/EPOXY	PLASTIC/EPOXY	-
encapsulated code	-	DIP	SOP	TSSOP	-
Encapsulate equivalent code	-	DIP16,.3	SOP16,.25	TSSOP16,.25	-
Package shape	-	RECTANGULAR	RECTANGULAR	RECTANGULAR	-
Package form	-	IN-LINE	SMALL OUTLINE	SMALL OUTLINE, THIN PROFILE, SHRINK PITCH	-
method of packing	-	TUBE	TUBE	TAPE AND REEL	-
Peak Reflow Temperature (Celsius)	-	NOT SPECIFIED	260	NOT SPECIFIED	-
power supply	-	5 V	5 V	5 V	-
propagation delay (tpd)	-	10.5 ns	10.5 ns	10.5 ns	-
Certification status	-	Not Qualified	Not Qualified	Not Qualified	-
Maximum seat height	-	5.1 mm	1.75 mm	1.2 mm	-
Maximum supply voltage (Vsup)	-	5.5 V	5.5 V	5.5 V	-
Minimum supply voltage (Vsup)	-	4.5 V	4.5 V	4.5 V	-
Nominal supply voltage (Vsup)	-	5 V	5 V	5 V	-
surface mount	-	NO	YES	YES	-
technology	-	CMOS	CMOS	CMOS	-
Temperature level	-	MILITARY	MILITARY	MILITARY	-
Terminal surface	-	Matte Tin (Sn)	Nickel/Palladium/Gold (Ni/Pd/Au)	Tin/Lead (Sn/Pb)	-
Terminal form	-	THROUGH-HOLE	GULL WING	GULL WING	-
Terminal pitch	-	2.54 mm	1.27 mm	0.65 mm	-
Terminal location	-	DUAL	DUAL	DUAL	-
Maximum time at peak reflow temperature	-	NOT SPECIFIED	40	NOT SPECIFIED	-
Trigger type	-	POSITIVE EDGE	POSITIVE EDGE	POSITIVE EDGE	-
width	-	7.62 mm	3.9 mm	4.4 mm	-
minfmax	-	85 MHz	85 MHz	85 MHz	-

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