UPD43257BCZ-85L Renesas Electronics America, UPD43257BCZ-85L Datasheet - Page 4

• Manufacturer Part Number: UPD43257BCZ-85L
• Manufacturer: Renesas Electronics America

Specifications of UPD43257BCZ-85L

• Density: 256Kb
• Access Time (max): 85ns
• Sync/async: Asynchronous
• Architecture: Not Required
• Clock Freq (max): Not RequiredMHz
• Operating Supply Voltage (typ): 5V
• Address Bus: 15b
• Package Type: PDIP
• Operating Temp Range: 0C to 70C
• Number Of Ports: 1
• Supply Current: 45mA
• Operating Supply Voltage (min): 4.5V
• Operating Supply Voltage (max): 5.5V
• Operating Temperature Classification: Commercial
• Mounting: Through Hole
• Pin Count: 28
• Word Size: 8b
• Number Of Words: 32K
• Lead Free Status / Rohs Status: Not Compliant

4
Remark Refer to Package Drawings for the 1-pin marking.
GND
I/O1
I/O2
I/O3
A14
A12
A7
A6
A5
A4
A3
A2
A1
A0
28-pin PLASTIC SOP (11.43 mm (450))
A0 - A14
I/O1 - I/O8
/CE1
CE2
/WE
V
GND
CC
[
[
[
μ
1
2
3
4
5
6
7
8
9
10
11
12
13
14
Data Sheet M10693EJ9V0DS
[
μ
μ
PD43257BGU-xxLL-A ]
μ
PD43257BGU-xxL-A ]
PD43257BGU-xxLL ]
PD43257BGU-xxL ]
: Address inputs
: Data inputs / outputs
: Chip Enable 1
: Chip Enable 2
: Write Enable
: Power supply
: Ground
28
27
26
25
24
23
22
21
20
19
18
17
16
15
V
/WE
A13
A8
A9
A11
CE2
A10
/CE1
I/O8
I/O7
I/O6
I/O5
I/O4
CC
μ
PD43257B