1998 Dec 08
6
Philips Semiconductors
Preliminary specification
2.9-Mbit field memory with noise reduction
SAA4956TJ
6
PINNING
SYMBOL
PIN
I/O
DESCRIPTION
SCL
GND
D11
(Y7)
D10
(Y6)
D9
(Y5)
D8
(Y4)
D7
(Y3)
D6
(Y2)
D5
(Y1)
D4
(Y0)
D3
(U1)
D2
(U0)
D1
(V1)
D0
(V0)
SWCK
RSTW
WE
IE
V
DD
SDA
V
DD(P)
V
DD(O)
OE
RE
RSTR
SRCK
Q0
(V0)
Q1
(V1)
Q2
(U0)
Q3
(U1)
Q4
(Y0)
Q5
(Y1)
Q6
(Y2)
Q7
(Y3)
Q8
(Y4)
Q9
(Y5)
Q10
(Y6)
Q11
(Y7)
OGND
NREN
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
digital input
ground
digital input
digital input
digital input
digital input
digital input
digital input
digital input
digital input
digital input
digital input
digital input
digital input
digital input
digital input
digital input
digital input
supply
digital I/O
supply
supply
digital input
digital input
digital input
digital input
digital output
digital output
digital output
digital output
digital output
digital output
digital output
digital output
digital output
digital output
digital output
digital output
ground
digital input
serial clock of I
2
C-bus
general purpose ground
data input 11, Y input bit 7 if NREN is HIGH
data input 10, Y input bit 6 if NREN is HIGH
data input 9, Y input bit 5 if NREN is HIGH
data input 8, Y input bit 4 if NREN is HIGH
data input 7, Y input bit 3 if NREN is HIGH
data input 6, Y input bit 2 if NREN is HIGH
data input 5, Y input bit 1 if NREN is HIGH
data input 4, Y input bit 0 if NREN is HIGH
data input 3, U input bits 1, 3, 5, 7 if NREN is HIGH
data input 2, U input bits 0, 2, 4, 6 if NREN is HIGH
data input 1, V input bits 1, 3, 5, 7 if NREN is HIGH
data input 0, V input bits 0, 2, 4, 6 if NREN is HIGH
serial write clock
write reset clock
write enable
input enable
3.3 V general purpose supply voltage
serial data of I
2
C-bus
3.3 to 5.5 V supply voltage for protection circuits
3.3 V supply voltage for output circuits
output enable
read enable
reset read
serial read clock
data output 0, V output bits 0, 2, 4, 6 if NREN is HIGH
data output 1, V output bits 1, 3, 5, 7 if NREN is HIGH
data output 2, U output bits 0, 2, 4, 6 if NREN is HIGH
data output 3, U output bits 1, 3, 5, 7 if NREN is HIGH
data output 4, Y output bit 0 if NREN is HIGH
data output 5, Y output bit 1 if NREN is HIGH
data output 6, Y output bit 2 if NREN is HIGH
data output 7, Y output bit 3 if NREN is HIGH
data output 8, Y output bit 4 if NREN is HIGH
data output 9, Y output bit 5 if NREN is HIGH
data output 10, Y output bit 6 if NREN is HIGH
data output 11, Y output bit 7 if NREN is HIGH
ground for output circuits
noise reduction enable