82C84A

Features:

* Generates the System Clock For CMOS or NMOS Microprocessors
* Up to 25MHz Operation
* Uses a Parallel Mode Crystal Circuit or External Frequency Source
* Provides Ready Synchronization
* Generates System Reset Output From Schmitt Trigger Input
* TTL Compatible Inputs/Outputs
* Very Low Power Consumption
* Single 5V Power Supply
* Operating Temperature Ranges
- C82C84A . . . . . . . . . . . . . . . . . . . . . . . . .0 to +70
- I82C84A. . . . . . . . . . . . . . . . . . . . . . . . -40 to +85
-M82C84A. . . . . . . . . . . . . . . . . . . . . . -55 to +125




Pinout






Specifications

Supply Voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .+8.0V
Input, Output or I/O Voltage . . . . . . . . . . . GND -0.5V to V_CC +0.5V
ESD Classification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Class 1




Description

The Intersil 82C84A is a high performance CMOS Clock Generator-driver which is designed to service the requirements of both CMOS and NMOS microprocessors such as the 80C86, 80C88, 8086 and the 8088. The 82C84A contains a crystal controlled oscillator, a divide-by-three counter and complete "Ready" synchronization and reset logic.
Static CMOS circuit design permits operation with an external fre-quency source from DC to 25MHz. Crystal controlled operation to 25MHz is guaranteed with the use of a parallel, fundamental mode crystal and two small load capacitors.
All inputs (except X1 and RES) are TTL compatible over tempera- ture and voltage ranges.
Power consumption is a fraction of that of the equivalent bipolar cir-cuits. This speed-power characteristic of CMOS permits the designer to custom tailor his system design with respect to power and/or speed requirements.