W24258Q-55LL Datasheet PDF - Winbond
| Part Number | W24258Q-55LL | |
| Description | 32K X 8 CMOS STATIC RAM | |
| Manufacturers | Winbond | |
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W24258/LL
GENERAL DESCRIPTION
32K × 8 CMOS STATIC RAM
The W24258/LL is a normal speed, very low power CMOS static RAM organized as 32768 × 8 bits
that operates on a single 5-volt power supply. This device is manufactured using Winbond's high
performance CMOS technology.
FEATURES
• Low power consumption:
− Active: 350 mW (max.)
− Standby: 25 µW (max.)
• Access time: 55/70 nS (max.)
• Single 5V power supply
• Fully static operation
• All inputs and outputs directly TTL compatible
• Three-state outputs
• Battery back-up operation capability
• Data retention voltage: 2V (min.)
• Packaged in 28-pin 600 mil DIP, 330 mil SOP
and standard type one TSOP (8 mm × 13.4
mm)
PIN CONFIGURATIONS
BLOCK DIAGRAM
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
28-pin
DIP
28
27
26
25
24
23
22
21
20
19
18
17
16
15
VDD
WE
A13
A8
A9
A11
OE
A10
CS
I/O8
I/O7
I/O6
I/O5
I/O4
CLK GEN.
PRECHARGE CKT.
A12
A14
R
A2 O
W
A3 CORE CELL ARRAY
D
A4 E 512 ROWS
C
A5 O 64 X 8 COLUMNS
D
A6 E
R
A7
A13
I/O1 DATA
I/O CKT.
I/O8 CNTRL. COLUMN DECODER
CLK
GEN.
A11 A10 A1 A0 A8 A9
WE
CS
OE
OE
A11
A9
A8
A13
WE
V DD
A14
A12
A7
A6
A5
A4
A3
1
2
3
4
5
6
7
8
9
10
11
12
13
14
28-pin
TSOP
28 A10
27 CS
26 I/O8
25 I/O7
24 I/O6
23 I/O5
22 I/O4
21 V SS
20 I/O3
19 I/O2
18 I/O1
17 A0
16 A1
15 A2
PIN DESCRIPTION
SYMBOL
A0−A14
I/O1−I/O8
CS
WE
OE
VDD
VSS
DESCRIPTION
Address Inputs
Data Inputs/Outputs
Chip Select Input
Write Enable Input
Output Enable Input
Power Supply
Ground
Publication Release Date: November 1998
- 1 - Revision A5
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TIMING WAVEFORMS
Read Cycle 1
(Address Controlled)
Address
DOUT
TRC
TAA
TOH
Read Cycle 2
(Chip Select Controlled)
CS
DOUT
TCLZ
TACS
Read Cycle 3
(Output Enable Controlled)
Address
OE
CS
D OUT
T RC
TAA
T AOE
TOLZ
T ACS
TCLZ
W24258/LL
TOH
TCHZ
TOH
T OHZ
T CHZ
Publication Release Date: November 1998
- 5 - Revision A5
Preview 5 Page |
Part DetailsOn this page, you can learn information such as the schematic, equivalent, pinout, replacement, circuit, and manual for W24258Q-55LL electronic component. |
| Information | Total 10 Pages | |
| Link URL | [ Copy URL to Clipboard ] | |
| Download | [ W24258Q-55LL.PDF Datasheet ] | |
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