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W24512AJ-15 Schematic ( PDF Datasheet ) - Winbond

Teilenummer W24512AJ-15
Beschreibung 64K X 8 HIGH SPEED CMOS STATIC RAM
Hersteller Winbond
Logo Winbond Logo 




Gesamt 10 Seiten
W24512AJ-15 Datasheet, Funktion
W24512A
64K × 8 HIGH SPEED CMOS STATIC RAM
GENERAL DESCRIPTION
The W24512A is a high speed, low power CMOS static RAM organized as 65536 × 8 bits that
operates on a single 5-volt power supply. This device is manufactured using Winbond's high
performance CMOS technology.
FEATURES
High speed access time: 15/20/25/35 nS (max.)
Low power consumption:
Active: 500 mW (typ.)
Single +5V power supply
Fully static operation
All inputs and outputs directly TTL compatible
Three-state outputs
Available packages: 32-pin 300 mil SOJ,
skinny DIP, 450 mil SOP, and standard type
one TSOP
PIN CONFIGURATIONS
BLOCK DIAGRAM
A11
A9
A8
A13
WE
CS2
A15
VDD
NC
NC
A14
A12
A7
A6
A5
A4
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
NC
NC
A14
A12
A7
A6
A5
A4
A3
A2
A1
A0
I/O1
I/O2
I/O3
VSS
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
32 VDD
31 A15
30 CS2
29 WE
28 A13
27 A8
26 A9
25 A11
24 OE
23 A1 0
22 CS1
21 I/O8
20 I/O7
19 I/O6
18 I/O5
17 I/O4
32-pin
TSOP
32 OE
31 A10
30 CS1
29 I/O8
28 I/O7
27 I/O6
26 I/O5
25 I/O4
24 VSS
23 I/O3
22 I/O2
21 I/O1
20 A0
19 A1
18 A2
17 A3
V DD
V SS
A0
.
.
A15
DECODER
CS2
CS1
OE
WE
CONTROL
CCOORREE
ARRAY
DATA I/O
I/O. 1
.
I/O8
PIN DESCRIPTION
SYMBOL
A0A15
I/O1I/O8
CS1, CS2
WE
OE
VDD
VSS
NC
DESCRIPTION
Address Inputs
Data Inputs/Outputs
Chip Select Inputs
Write Enable Input
Output Enable Input
Power Supply
Ground
No Connection
Publication Release Date: March 1999
- 1 - Revision A7






W24512AJ-15 Datasheet, Funktion
Timing Waveforms, continued
Write Cycle 1
(OE Clock)
Address
OE
CS1
CS2
WE
D OUT
D IN
T WC
TCW1
TWR1
TCW2
TAW
TAS TWP
TOHZ
(1, 4)
TWR2
TDW
TDH
W24512A
Write Cycle 2
(OE = VIL Fixed)
Address
CS1
CS2
WE
D OUT
DIN
TWC
TCW1
TWR1
TCW2
TAW
TWR2
TAS
TWP
TOH
TWHZ (1, 4)
TOW
(2) (3)
TDW
TDH
Notes:
1. During this period, I/O pins are in the output state, so input signals of opposite phase to the outputs should not be applied.
2. The data output from DOUT are the same as the data written to DIN during the write cycle.
3. DOUT provides the read data for the next address.
4. Transition is measured ±500 mV from steady state with CL = 5 pF. This parameter is guaranteed but not 100% tested.
-6-

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