82C836 查看數據表（PDF） - Unspecified

零件编号

产品描述 (功能)

比赛名单

82C836

Single-Chip 386sx AT

Unspecified 

s Signal Descriptions

Pin Assignments

Signal Descriptions

A signal name prefixed by a hyphen, such as -RAS0, specifies an active-low signal.

Tables 2-1 through 2-6 describes the functions and characteristics of the signals on

each pin or group of pins for the 82C836 chipset.

Table 2-1. Clock Input and Output Signals

Pin

Type

122

Input

121

Output

3

Input

2

Output

56

Output

Name

OSC1

OSC2

CXIN

PROCCLK

BUSCLK

Description

14.318MHz crystal oscillator input, either from an external

oscillator module or from a crystal that is also tied to OSC2.

The 82C836 circuit is an inverting amplifier and relies on low

crystal impedance at resonance (i.e. series resonance).

14.318MHz crystal oscillator output from the internal crystal

oscillator. If an external oscillator module is used, leave

OSC2 unconnected.

CPU clock oscillator input from an external oscillator. Serves

as the source for PROCCLK.

Processor Clock output to the 80386sx processor. The

frequency of PROCCLK is twice the processor’s internal

clock frequency.

Bus Clock output to the 8042 and AT bus.

2-2 Revision 3.0

PRELIMINARY

Chips and Technologies, Inc.

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