Sanyo SFX-110 Service Manual page 82

2A256LL
MC33219A
Pin Configuration
Vcc
IF
A12 2
27 WE
A7 3 26 A13
A6 4
25 A6
A5 5 24 A9
A4 6 23 Al 1
A3 7 22
tiE
A2 8 21
Al O
Al 9 20 Cs
AO 10
19
1/07
1/01 11
18 1/06
1/02 12
17
1/05
1/03 13 16
1/04
Vss 14 15 1/03
Top view
Block Diagram
AO
Al
A2
i
[ Address
Buffer
A13
A14
T_
Ics
--rl
Chip
Control
I
1
Memory
9
x
+
Decoder
Cell Array
+ (512x123x8)
6
Column Select
t
xa--
-h
l/O Buffer
HHHH
O. Olm*mwb
00000000
. . . . . . . .
Pin Connections
D
CP2 1 24 Vcc
XDI 2 23 TAO
CPT 3 22
TAI
TLI 4
21
MCO
TLO 5 20
MCI
VB 6 19 VLC
CT 7
16 MUTE
CD 8 17 RXI
NC 9 16 RXO
CPR 10 15 RAI
RLI 11 14 RAO
RLO 12
13
GND
Top view
Simplified Block Diagram
Microphone
AL z Transmit
1+ Vei?e
Amd!fler
. .
This device contains 3a4 active transistors
—.
81