74act16101 STMicroelectronics, 74act16101 Datasheet

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74act16101

Manufacturer Part Number
74act16101
Description
Synchronous Presettable 4-bit Counter
Manufacturer
STMicroelectronics
Datasheet
DESCRIPTION
The 74ACT161 is an advanced high-speed CMOS
SYNCRONOUS
fabricated with sub-micron silicon gate and
double-layer metal wiring C
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
April 2001
HIGH SPEED:
f
LOW POWER DISSIPATION:
I
COMPATIBLE WITH TTL OUTPUTS
V
50 TRANSMISSION LINE DRIVING
CAPABILITY
SYMMETRICAL OUTPUT IMPEDANCE:
|I
BALANCED PROPAGATION DELAYS:
t
OPERATING VOLTAGE RANGE:
V
PIN AND FUNCTION COMPATIBLE WITH
74 SERIES 161
IMPROVED LATCH-UP IMMUNITY
MAX
CC
PLH
OH
IH
CC
= 8 A(MAX.) at T
= 2V (MIN.), V
| = I
(OPR) = 4.5V to 5.5V
= 290MHz (TYP.) at V
t
PHL
OL
= 24mA (MIN)
SYNCHRONOUS PRESETTABLE 4-BIT COUNTER
PRESETTABLE
IL
= 0.8V (MAX.)
A
=25°C
2
MOS tecnology. It is a
CC
= 5V
COUNTER
ORDER CODES
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.
PACKAGE
TSSOP
SOP
DIP
DIP
74ACT161M
74ACT161B
TUBE
SOP
74ACT161
74ACT161MTR
74ACT161TTR
TSSOP
T & R
1/13

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74act16101 Summary of contents

Page 1

SYNCHRONOUS PRESETTABLE 4-BIT COUNTER HIGH SPEED 290MHz (TYP MAX CC LOW POWER DISSIPATION A(MAX =25° COMPATIBLE WITH TTL OUTPUTS (MIN.), V = 0.8V (MAX.) ...

Page 2

INPUT AND OUTPUT EQUIVALENT CIRCUIT TRUTH TABLE INPUTS CLEAR LOAD Don’t ...

Page 3

TIMING CHART 74ACT161 3/13 ...

Page 4

ABSOLUTE MAXIMUM RATINGS Symbol Parameter V Supply Voltage Input Voltage Output Voltage Input Diode Current Output Diode Current Output Current ...

Page 5

DC SPECIFICATIONS Test Condition Symbol Parameter V CC (V) V High Level Input 4.5 IH Voltage 5.5 V Low Level Input 4.5 IL Voltage 5.5 V High Level Output 4.5 OH Voltage 5.5 4.5 5.5 V Low Level Output 4.5 ...

Page 6

AC ELECTRICAL CHARACTERISTICS (C Test Condition Symbol Parameter Propagation Delay (*) 5.0 PLH PHL Time CLOCK Propagation Delay (*) 5.0 PLH PHL Time CLOCK to CARRY OUT t t Propagation ...

Page 7

CAPACITIVE CHARACTERISTICS Test Condition Symbol Parameter V CC (V) C Input Capacitance 5 Power Dissipation PD Capacitance (note 5 defined as the value of the IC’s internal equivalent capacitance which is calculated from the ...

Page 8

WAVEFORM 2: PROPAGATION DELAYS CLEAR MODE (f=1MHz; 50% duty cycle) WAVEFORM 3: PROPAGATION DELAYS PRESET MODE (f=1MHz; 50% duty cycle) 8/13 ...

Page 9

WAVEFORM 4: PROPAGATION DELAYS COUNTABLE MODE (f=1MHz; 50% duty cycle) WAVEFORM 5: PROPAGATION DELAYS CASCADE MODE (f=1MHz; 50% duty cycle) 74ACT161 9/13 ...

Page 10

Plastic DIP-16 (0.25) MECHANICAL DATA mm DIM. MIN. TYP. a1 0. 2.54 e3 17. 10/13 MAX. MIN. 0.020 1.65 0.030 0.5 20 8.5 7.1 5.1 3.3 1.27 ...

Page 11

SO-16 MECHANICAL DATA mm DIM. MIN. TYP 0 0.35 b1 0. 9.8 E 5.8 e 1.27 e3 8.89 F 3.8 G 4 inch MAX. MIN. TYP. 1.75 0.2 ...

Page 12

TSSOP16 MECHANICAL DATA DIM. MIN. TYP 0.05 A2 0.85 b 0.19 c 0.09 D 4.9 E 6.25 E1 4.3 e 0.65 BSC 0. PIN 1 IDENTIFICATION 1 12/13 mm ...

Page 13

... No license is granted by implication or otherwise under any patent or patent rights of STMicroelectronics. Specifications mentioned in this publication are subject to change without notice. This publication supersedes and replaces all information previously supplied ...

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