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Part Name(s) : SN54LS190 SN54LS190J SN54LS191 SN54LS191J SN74LS190 SN74LS191 SN74LS190N SN74LS191N SN74LS190D SN74LS191D Motorola
Motorola => Freescale
Description : PRESETTABLE BCD/DECADE UP/DOWN COUNTERS PRESETTABLE 4-BIT BINARY UP/DOWN COUNTERS View

PRESETTABLE BCD/DECADE UP/DOWN COUNTERS
PRESETTABLE 4-BIT BINARY UP/DOWN COUNTERS

The SN54/74LS190 is a SYNCHRONOUS UP/DOWN BCD DECADE (8421) Counter and the SN54/74LS191 is a SYNCHRONOUS UP/DOWN Modulo-16 Binary Counter. State changes of the COUNTERS are SYNCHRONOUS with the LOW-to-HIGH transition of the Clock Pulse input.
An aSYNCHRONOUS Parallel Load (PL) input overrides counting and loads the data present on the Pn inputs into the flip-flops, which makes it possible to use the circuits as programmable COUNTERS. A Count Enable (CE) input serves as the carry /borrow input in multi-stage COUNTERS. An Up/Down Count Control (U/D) input determines whether a circuit counts up or down. A Terminal Count (TC) output and a Ripple Clock (RC) output provide overflow/underflow indication and make possible a variety of methods for generating carry/borrow signals in multistage counter applications.

• Low Power . . . 90 mW Typical Dissipation
• High Speed . . . 25 MHz Typical Count Frequency
SYNCHRONOUS Counting
• ASYNCHRONOUS Parallel Load
• Individual Preset Inputs
• Count Enable and Up/Down Control Inputs
• Cascadable
• Input Clamp Diodes Limit High Speed Termination Effects

Part Name(s) : 54LS160A 54LS162A DM74LS160A DM74LS162A 54LS160ALMQB 54LS162ALMQB 54LS160ADMQB 54LS162ADMQB DM74LS160AM DM74LS162AM DM74LS160AN DM74LS162AN 54LS160AFMQB 54LS162AFMQB National-Semiconductor
National ->Texas Instruments
Description : SYNCHRONOUS PRESETTABLE BCD DECADE COUNTERS View

General Description
The ’LS160 and ’LS162 are high speed SYNCHRONOUS DECADE COUNTERS operating in the BCD (8421) sequence. They are SYNCHRONOUSly PRESETTABLE for application in programmable dividers and have two types of Count Enable inputs plus a Terminal Count output for versatility in forming SYNCHRONOUS multistage COUNTERS. The ’LS160 has an aSYNCHRONOUS Master Reset input that overrides all other inputs and forces the outputs LOW. The ’LS162 has a SYNCHRONOUS Reset input that overrides counting and parallel loading and allows all outputs to be simultaneously reset on the rising edge of the clock.

Features
SYNCHRONOUS counting and loading
■ High speed SYNCHRONOUS expansion
■ Typical count rate of 35 MHz
■ Fully edge triggered

Part Name(s) : 54LS190J 54LS191J 74LS190 74LS190D 74LS190N 74LS191 74LS191D 74LS191N Motorola
Motorola => Freescale
Description : PRESETTABLE BCD/DECADE PRESETTABLE 4-BIT BINARY UP/DOWN COUNTERS View

TheSN54/74LS190 is aSYNCHRONOUS UP/DOWN BCD DECADE (8421) Counterand the SN54/74LS191is a SYNCHRONOUS UP/DOWN Modulo-16 BinaryCounter. State changes of the COUNTERS are SYNCHRONOUS with the LOW-to-HIGH transition of the Clock Pulse input.

Part Name(s) : MC74F160A MC74F160AD MC74F160AJ MC74F160AN MC74F162A MC74F162AD MC74F162AJ MC74F162AN Motorola
Motorola => Freescale
Description : SYNCHRONOUS PRESETTABLE BCD DECADE COUNTER View

The MC74F160A and MC74F162A are high-speed SYNCHRONOUS DECADE COUNTERS operating in the BCD (8421) sequence. They are SYNCHRONOUSly PRESETTABLE for application in programmable dividers and have two types of Count Enable inputs plus a Terminal Count output for versatility in forming SYNCHRONOUS multistage COUNTERS. The MC74F160A has an aSYNCHRONOUS Master Reset input that overrides all other inputs and forces the outputs LOW. The MC74F162A has a SYNCHRONOUS Reset input that overrides counting and parallel loading and allows the outputs to be simultaneously reset on the rising edge of the clock.

SYNCHRONOUS Counting and Loading
• High-Speed SYNCHRONOUS Expansion
• Typical Count Rate of 120 MHz


Part Name(s) : MC74AC160 MC74AC160D MC74AC160N MC74AC162 MC74AC162D MC74AC162N MC74ACT160 MC74ACT160D MC74ACT160N MC74ACT162 MC74ACT162D MC74ACT162N Motorola
Motorola => Freescale
Description : SYNCHRONOUS PRESETTABLE BCD DECADE counter View

The MC74AC160/74ACT160 and MC74AC162/74ACT162 are high-speed SYNCHRONOUS DECADE COUNTERS operating in the BCD (8421) sequence. They are SYNCHRONOUSly PRESETTABLE for application in programmable dividers and have two types of Count Enable inputs plus a Terminal Count output for versatility informing SYNCHRONOUS multistage COUNTERS. The MC74AC160/74ACT160 has an aSYNCHRONOUS Master Reset input that overrides all other inputs and forces the outputs LOW. The MC74AC162/74ACT162 has a SYNCHRONOUS Reset input that overrides counting and parallel loading and allows all outputs to be simultaneously reset on the rising edge of the clock.

SYNCHRONOUS Counting and Loading
• High-Speed SYNCHRONOUS Expansion
• Typical Count Rate of 120 MHz
• Outputs Source/Sink 24 mA
• ′ACT160 and ′ACT162 Have TTL Compatible Inputs

Part Name(s) : 74HC190 74HC190D 74HC190DB 74HC190N 74HC190PW 74HCT190 74HCT190D 74HCT190DB 74HCT190N 74HCT190PW Philips
Philips Electronics
Description : PRESETTABLE SYNCHRONOUS BCD DECADE up/down counter View

The 74HC/HCT190 are high-speed Si-gate CMOS devices and are pin compatible with low power Schottky TTL (LSTTL). They are specified in compliance with JEDEC standard no. 7A.

The 74HC/HCT190 are aSYNCHRONOUSly PRESETTABLE up/down BCD DECADE COUNTERS. They contain four master/slave flip-flops with internal gating and steering logic to provide aSYNCHRONOUS preset and SYNCHRONOUS count-up and count-down operation.

Part Name(s) : 74HC162 74HCT162 Philips
Philips Electronics
Description : PRESETTABLE SYNCHRONOUS BCD DECADE counter; SYNCHRONOUS reset View

GENERAL DESCRIPTION
The 74HC/HCT162 are high-speed Si-gate CMOS devices and are pin compatible with low power Schottky TTL (LSTTL). They are specified in compliance with JEDEC standard no. 7A.
The 74HC/HCT162 are SYNCHRONOUS PRESETTABLE DECADE COUNTERS which feature an internal look-ahead carry and can be used for high-speed counting. SYNCHRONOUS operation is provided by having all flip-flops
clocked simultaneously on the positive-going edge of the clock (CP).

FEATURES
SYNCHRONOUS counting and loading
• Two count enable inputs for n-bit cascading
• Positive-edge triggered clock
SYNCHRONOUS reset
• Output capability: standard
• ICC category: MSI

Part Name(s) : SN54LS169J SN54LS169 SN74LS169D SN74LS169 SN74LS169N Motorola
Motorola => Freescale
Description : BCD DECADE/MODULO 16 BINARY SYNCHRONOUS BI-DIRECTIONAL COUNTERS View

BCD DECADE/MODULO 16 BINARY SYNCHRONOUS BI-DIRECTIONAL COUNTERS

The SN54/74LS168 and SN54/74LS169 are fully SYNCHRONOUS 4-stage up/down COUNTERS featuring a preset capability for programmable operation, carry lookahead for easy cascading and a U/D input to control the direction of counting. The SN54/74LS168 counts in a BCD DECADE (8, 4, 2, 1) sequence, while the SN54/74LS169 operates in a Modulo 16 binary sequence. All state changes, whether in counting or parallel loading, are initiated by the LOW-to-HIGH transition of the clock.

• Low Power Dissipation 100 mW Typical
• High-Speed Count Frequency 30 MHz Typical
• Fully SYNCHRONOUS Operation
• Full Carry Lookahead for Easy Cascading
• Single Up/Down Control Input
• Positive Edge-Trigger Operation
• Input Clamp Diodes Limit High-Speed Termination Effects

Part Name(s) : MMC4029 Micro-Electronics
Micro Electronics
Description : PRESETTABLE UP / DOWN COUNTER BINARY OR BCD - DECADE View

PRESETTABLE UP / DOWN COUNTER BINARY OR BCD - DECADE

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