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W24LH8 Datasheet, PDF (1/10 Pages) Winbond – Normal speed, Very low power CMOS static RAM Organized as 32768 x 8 bits
W24LH8
32K × 8 CMOS STATIC RAM
GENERAL DESCRIPTION
The W24LH8 is a normal speed, very low power CMOS static RAM organized as 32768 × 8 bits that
operates on a wide voltage range from 2.7V to 5.5V power supply. The W24LH8 family, W24LH8-55LE
and W24LH8-55LI, can meet requirement of various operating temperature. This device is
manufactured using Winbond's high performance CMOS technology.
FEATURES
• Low power consumption
• Access time: 55 nS (5V ±10%),
100 nS (3V ±10%)
• 2.7V to 5.5V supply voltage
• Fully static operation
• All inputs and outputs directly TTL compatible
PIN CONFIGURATIONS
• Three-state outputs
• Battery back-up operation capability
• Data retention voltage: 2V (min.)
• Available packages: 330 mil SOP and standard
type one TSOP (8 mm × 13.4 mm)
BLOCK DIAGRAM
A14 1
A12 2
A7 3
A6 4
A5 5
A4 6
A3 7
A2 8
A1 9
A0 10
I/O1 11
I/O2 12
I/O3 13
VSS 14
28
27
26
25
24
23
28-pin
SOP 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
#OE 1
A11 2
A9 3
A8 4
A13 5
#WE 6
VDD 7
A14 8
A12 9
A7 10
A6 11
A5 12
A4 13
A3 14
28-pin
TSOP
28 A10
27 #CS
26 I/O8
25 I/O7
24 I/O6
23 I/O5
22 I/O4
21 VSS
20 I/O3
19 I/O2
18 I/O1
17 A0
16 A1
15 A2
CLK GEN.
PRECHARGE CKT.
A12
A14
R
A2
O
W
CORE CELL ARRAY
A3
A4
D
E
512 ROWS
A5
C
O
64 X 8 COLUMNS
D
A6
E
R
A7
A13
I/O1
DATA
I/O CKT.
I/O8
CNTRL. COLUMN DECODER
CLK
GEN.
#WE
#CS
#OE
A11 A10 A1 A0 A8 A9
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: March 2001
-1-
Revision A3