파트넘버.co.kr 74ACT163M 데이터시트 PDF


74ACT163M 반도체 회로 부품 판매점

SYNCHRONOUS PRESETTABLE 4-BIT COUNTER



STMicroelectronics 로고
STMicroelectronics
74ACT163M 데이터시트, 핀배열, 회로
® 74ACT163
SYNCHRONOUS PRESETTABLE 4-BIT COUNTER
s HIGH SPEED:
fMAX =200 MHz (TYP.) at VCC = 5V
s LOW POWER DISSIPATION:
ICC = 4 µA (MAX.) at TA = 25 oC
s COMPATIBLE WITH TTL OUTPUTS
VIH = 2V (MIN), VIL = 0.8V (MAX)
s 50TRANSMISSION LINE DRIVING
CAPABILITY
s SYMMETRICAL OUTPUT IMPEDANCE:
|IOH| = IOL = 24 mA (MIN)
s BALANCED PROPAGATION DELAYS:
tPLH tPHL
s OPERATING VOLTAGE RANGE:
VCC (OPR) = 4.5V to 5.5V
s PIN AND FUNCTION COMPATIBLE WITH
74 SERIES 163
s IMPROVED LATCH-UP IMMUNITY
DESCRIPTION
The ACT163 is a high-speed CMOS
SYNCRONOUS PRESETTABLE COUNTER
fabricated with sub-micron silicon gate and
double-layer metal wiring C2MOS technology. It is
ideal for low power applications mantaining high
speed operation similar to eqivalent Bipolar
Schottky TTL. It is a 4 bit binary counter with
Synchronous Clear.
The circuits have four fundamental modes of
operation, in order of preference: synchronous
reset, parallel load, count-up and hold. Four
control inputs, Master Reset (CLEAR), Parallel
PIN CONNECTION AND IEC LOGIC SYMBOLS
BM
(Plastic Package)
(Micro Package)
ORDER CODES :
74ACT163B
74ACT163M
Enable Input (LOAD), Count Enable Input (PE)
and Count Enable Carry Input (TE), determine
the mode of operation as shown in the Truth
Table. A LOW signal on CLEAR overrides
counting and parallel loading and allows all
output to go LOW on the next rising edge of
CLOCK. A LOW signal on LOAD overrides
counting and allows information on Parallel Data
Qn inputs to be loaded into the flip-flops on the
next rising edge of CLOCK. With LOAD and
CLEAR, PE and TE permit counting when both
are HIGH. Conversely, a LOW signal on either
PE and TE inhibits counting.
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.
December 1998
1/11


74ACT163M 데이터시트, 핀배열, 회로
74ACT163
INPUT AND OUTPUT EQUIVALENT CIRCUIT
PIN DESCRIPTION
PIN No
1
2
3, 4, 5, 6
7
10
9
14, 13, 12,
11
10
8
16
SYMBOL NAME AND FUNCT ION
CLEAR Master Reset
CLOCK Clock Input (LOW-to-HIGH,
Edge- Triggered)
A, B, C, D Data Inputs
ENABLE P Count Enable Input
ENABLE T Count Enable Carry Input
LOAD Parallel Enable Input
QA to QD Flip-Flop Outpus
ENABLE T Count Enable Carry Input
GND Ground (0V)
VCC Positive Supply Voltage
TRUTH TABLE
INPUT S
OUTPUTS
CLR
LD
PE
TE
CK QA QB QC QD
LXXX
LLLL
H L XX
ABCD
HH X L
NO CHANGE
HH L X
NO CHANGE
HHHH
COUNT UP
X
NOTE:
XXX
X:Don’t Care
A,B, C,D: Logic level of data input
CARRY=TE QA QB QC QD
NO CHANGE
LOGIC DIAGRAMS
FUNCTION
RESET TO ”0”
PRESET DATA
NO COUNT
NO COUNT
COUNT
NO COUNT
2/11




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