74AC163TTR Datasheet
Product Details
DESCRIPTION
The 74AC163 is an advanced high-speed CMOS SYNCRONOUS PRESETTABLE
COUNTER fabricated with sub-micron silicon gate and double-layer
metal wiring C2MOS tecnology. It is a 4 bit binary counter with
Synchronous Clear.
The circuit 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 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 sets
all outputs on LOW state on the next rising edge of CLOCK. A LOW
signal on LOAD overrides 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. All inputs and outputs are equipped with protection
circuits against static discharge, giving them 2KV ESD immunity and
transient excess voltage.
■ HIGH SPEED:
fMAX = 200MHz (TYP.) at VCC = 5V
■ LOW POWER DISSIPATION:
ICC = 8µA(MAX.) at TA=25°C
■ HIGH NOISE IMMUNITY:
VNIH = VNIL = 28 % VCC (MIN.)
■ 50Ω TRANSMISSION LINE DRIVING CAPABILITY
■ SYMMETRICAL OUTPUT IMPEDANCE:
|IOH| = IOL = 24mA (MIN)
■ BALANCED PROPAGATION DELAYS: tPLH ≅ tPHL
■ OPERATING VOLTAGE RANGE:
VCC (OPR) = 2V to 6V
■ PIN AND FUNCTION COMPATIBLE WITH 74 SERIES 163
■ IMPROVED LATCH-UP IMMUNITY
Specifications
|
| Attribute | Attribute Value |
|---|
| Manufacturer | STMicroelectronics |
| Product Category | Counters, Dividers |
| Series | 74AC |
| Packaging | |
| Package-Case | 16-TSSOP (0.173", 4.40mm Width) |
| Operating-Temperature | -55°C ~ 125°C |
| Mounting-Type | Surface Mount |
| Direction | Up |
| Voltage-Supply | 2 V ~ 6 V |
| Supplier-Device-Package | 16-TSSOP |
| Number-of-Elements | 1 Element |
| Logic-Type | Binary Counter |
| Number-of-Bits-per-Element | 4 |
| Reset | Synchronous |
| Timing | Synchronous |
| Count-Rate | 200MHz |
| Trigger-Type | Positive Edge |
|
Form,Package,Functional compatible component
Descriptions
Counter IC Binary Counter 1 Element 4 Bit Positive Edge 16-TSSOP
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