Adcom GTP-740 - Page 24

24
GTP-740
32K x 9
ARRAY
INPUT BUFFER
I/O
0
I/O
1
I/O
2
I/O
3
I/O
I/O
7
8
I/O
6
I/O
5
I/O
4
WE
OE
CE
2
CE
1
SENSE AMPS
12 13
COLUMN
DECODER
POWER
DOWN
A
9
A
11
A
10
A A
8
A A
14
A
7
A
1
A
2
A
3
A
4
A
5
A
6
A
0
ROW DECODER
I/O
4
1
2
3
4
5
6
7
8
9
10
11
14
15
16
20
19
18
17
21
24
23
22
12
13
25
28
27
26
A
8
A
7
A
6
A
5
A
4
A
3
A
2
WE
V
CC
A
14
A
13
A
9
A
1
NC
I/O
0
CE
1
OE
A
11
29
32
31
30
NC
A
0
GND
I/O
1
I/O
2
I/O
3
CE
2
A
10
A
12
I/O
5
I/O
6
I/O
7
I/O
8
AC3 ASSEMBLY
U051: CY7C188
17PA 4
16PA 5
15PA 6
14PA 7
13ALE or AS
12GND
11PB0
10PB1
9PB2
8PB3
7PB4
29 AD6/A6
30 AD7/A7
31 A8
32 A9
33 A10
34 GND
35 A11
36 A12
37 A13
38 A14
39 A15
18PA 3 19PA 2 20PA 1 21PA 0 22RD/E/DS 23AD0/A0 24AD1/A1 25AD2/A2 26AD3/A3 27AD4/A4 28AD5/A5
6 PB5 5 PB6 4 PB7 3 RESET 2 V/R/V
PP
or R/W
1 PSEN
44 V
CC
43 A19/CSI 42 PC2 41 PC1 40 PC0
PAGE LOGIC
P3-P0 A16-A18
LOGIC IN
PROG.
PORT
EXP.
PC0-
PC2
PB0-
PB7
PA0-
PA 7
CS8-
CS10
CS0-
CS7
PORT
C
PROG.
PORT
EXP.
PORT
B
PROG.
PORT
EXP.
PORT
A
PAD B
27 P.T.
PAD A
13 P.T.
A11-A15
A8-A10
A19/CSI
ALE/AS
RD
WR
RESET
A19/CSI
CSIOPORT
ALE/AS
RD
WR
RESET
ALE/AS
D8-D15
ES0
D8-D15
D0-D7
CSIOPORT
TRACK MODE
SELECTS
EPROM
256Kb TO 2Mb
SRAM
16K BIT
PROG. CHIP
CONFIGURATION
PROG.
CONTROL
SIGNALS
X8, X16
MUX or NON-MUX BUSSES
SECURITY MODE
RS0
A0-A7
ALE/AS
RD/E/DS
WR/R/W
BHE/PSEN
RESET
A19/CSI
AD0-AD7/D0-D7
16/8
MUX
ES1
ES2
ES3
ES4
ES5
ES6
ES7
AD0-AD7
AD8-AD15
L
A
T
C
H
L
A
T
C
H
AC3 ASSEMBLY
U022: PSD312
IC BLOCK DIAGRAM