– 48 –
r
IC Block Digrams
– BASE UNIT SECTION –
U3007 CAT93C86S
– HANDSET SECTION –
U1006 CAT93C86S
– BASE UNIT SECTION –
U3001 SN74HC595ADBR
1
8
2
3
4
INSTRUCTION
DECODER, CONTROL
LOGIC AND CLOCK
GENERATORS
INSTRUCTION
REGISTER
ADDRESS
REGISTER
DECODER
IOF 1024
(or 2048)
DATA OUT
BUFFER
EEPROM ARRAY 16384 BIT
& (1024X16) or (2048X8)
READ WRITE AMPS
DATA IN/OUT RESISTER
16 (or 8) BITS
HIGH VOLTAGE
GENERATOR
AND
PROGRAM
TIMER
VCC
7 NC
6 ORG
5 VSS
DO
DI
SK
CS
1
2
3
4
5
6
7
8
9
10
16
15
14
13
12
11
SHIFT REGISTER
LATCH
PARALLEL DATA
OUTPUT
GND
VCC
LATCH
CLOCK
PARALLEL DATA
OUTPUT
SERIAL DATA
INPUT
OUTPUT
ENABLE
SHIFT
CLOCK
SERIAL DATA
OUTPUT
RESET
QB
QC
QD
QE
QF
QG
QH
SQH
A
QA
Summary of Contents for SPP-A985 - Cordless Telephone With Answering System
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