The W26L010A is a high-speed, low-power CMOS static RAM organized as 65,536 × 16 bits that
operates on a single 3.3-volt power supply. This device is manufactured using Winbond's high
performance CMOS technology.
The W26L010A has an active low chip select, separate upper and lower byte selects, and a fast
output enable. No clock or refreshing is required. Separate byte select controls (LB and UB) allow
individual bytes to be written and read. LB controls I/O1-I/O8, the lower byte. UB controls I/O9−
I/O16, the upper byte. This device is well suited for use in high-density, high-speed system
applications.
FEATURES
• High speed access time: 10/12 nS (max.)
• Low power consumption:
− Active: 530 mW (max.)
• Single +3.3V power supply
• Fully static operation
− No clock or refreshing
• All inputs and outputs directly TTL compatible
• Three-state outputs
• Data byte control
− LB (I/O1−I/O8), UB (I/O9−I/O16)
• Available packages: 44-pin 400 mil SOJ and
44-pin TSOP(II)
PIN CONFIGURATION
1
A0
2
A1
3
A2
4
A3
5
A4
6
CS
7
I/O1
8
I/O2
9
I/O3
I/O4
10
11
V
DD
V
SS
I/O5
I/O6
I/O7
I/O8
WE
A5
A6
A7
A8
NCNC
44-PIN
12
13
14
15
16
17
18
19
20
21
22
BLOCK DIAGRAM
VDD
V
SS
A0
.
DECODER
44
A15
43
A14
A13
42
41
OE
40
UB
39
LB
38
I/O16
37
I/O15
I/O14
36
35
I/O13
34
VSS
V
33
DD
32
I/O12
31
I/O11
30
I/O10
29
I/O9
28
NC
27
A12
26
A11
25
A10
24
A9
23
PIN DESCRIPTION
I/O1−I/O16
.
A15
UB
CS
CONTROL
OE
WE
LB
SYMBOLDESCRIPTION
A0−A15
Address Inputs
Data Inputs/Outputs
Chip Select Inputs
Write Enable Input
Output Hold from Address ChangeTOH3
Chip Select to Output in Low ZTCLZ*3
Chip Deselect to Output in High ZTCHZ*
Output Enable to Output in Low ZTOLZ*0
Output Disable to Output in High ZTOHZ*
*
Select to Output in Low Z
Deselect to Output in High Z
∗ These parameters are sampled but not 100% tested.
TBLZ
TBHZ*
- 4 -
−
−
−
−
−
−
0
−
10
10
5
5
−
−
5
−
5
−
5
−
−
−
−
3
3
−
0
−
0
−
12nS
12nS
6nS
6nS
−
−
nS
nS
6nS
−
nS
6nS
−
nS
6nS
AC Characteristics, continued
UB, LB
CS, WE
(2) Write Cycle
W26L010A
PARAMETER SYM.
Write Cycle TimeTWC10
Chip Select to End of WriteTCW9
Address Valid to End of WriteTAW9
Address Setup TimeTAS0
Select to End of Write
Write Pulse WidthTWP9
Write Recovery Time
Data Valid to End of WriteTDW6
Data Hold from End of WriteTDH0
Write to Output in High ZTWHZ*
End of Write to Output ActiveTOW*3
∗ These parameters are sampled but not 100% tested.
TBW9
TWR0
W26L010A-10W26L010A-12
MIN.MAX.MIN.MAX.
−
−
−
−
−
−
−
−
−
−
6
−
12
10
10
0
10
10
0
7
0
−
3
−
−
−
−
−
−
−
−
−
7nS
−
UNIT
nS
nS
nS
nS
nS
nS
nS
nS
nS
nS
Publication Release Date: July 1998
- 5 -Revision A3
Timing Waveforms
Read Cycle 1
(Address Controlled, CS =OE =UB=LB =VIL, WE =VIH)
T
RC
Address
T
AA
T
OH
D
OUT
Read Cycle 2
(Chip Select Controlled, OE =VIL, WE =VIH)
T
RC
W26L010A
T
OH
Address
CS
OE
UB / LB
D
OUT
HIGH-Z
Notes:
1. WE is high for read cycle.
2. Device is continuously selected.
CS =
CS =OE
= LB = Low
OE
= LB = Low
3. Address valid prior to or coincident with
transition low.
CS
T
CLZ
T
OLZ
TBLZ
T
ACS
T
CHZ
T
OE
T
BA
T
BHZ
T
OHZ
HIGH-Z
- 6 -
Timing Waveforms, continued
D
IN
Read Cycle 3
(Output Enable Controlled, CS =UB =LB =VIL, WE =VIH)
T
RC
Address
T
AA
OE
T
AOE
T
OLZ
D
OUT
Write Cycle 1
T
W26L010A
T
OH
OHZ
(OE Clock)
Address
OE
CS
UB/LB
WE
D
OUT
T
WC
T
WR
T
CW
T
BW
T
AW
T
WP
T
AS
T
T
DW
DH
Publication Release Date: July 1998
- 7 -Revision A3
Timing Waveforms, continued
Write Cycle 2
(OE = VIL Fixed)
Address
CS
UB/LB
WE
D
OUT
D
IN
W26L010A
T
WC
TT
CW
T
BW
T
AW
T
T
AS
WP
T
WHZ (1, 4)
T
DW
WR
T
DH
T
OH
T
OW
(2)(3)
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.
ORDERING INFORMATION
PART NO.ACCESS
TIME
(nS)
W26L010AJ-10101601044-pin 400 mil SOJ
W26L010AJ-12121401044-pin 400 mil SOJ
W26L010AT-10101601044-pin TSOP
W26L010AT-12121401044-pin TSOP
Notes:
1. Winbond reserves the right to make changes to its products without prior notice.
2. Purchasers are responsible for performing appropriate quality assurance testing on products intended for use in
applications where personal injury might occur as a consequence of product failure.
OPERATING
CURRENT
MAX. (mA)
STANDBY
CURRENT
MAX. (mA)
PACKAGE
- 8 -
PACKAGE DIMENSIONS
44-pin Small Outline J Band
W26L010A
44
1
s
Seating Plane
D
b
b
1
23
EEH
22
A
2
e
A
1
44-pin Standard Type Two TSOP
D
D
H
e
M
Dimension in inches
Symbol
Min. Nom.
A
A
A
1
b
b
0.1380.128
0.025
1
0.110 0.115
0.105
2
0.026
0.028 0.032 0.66 0.711 0.813
0.015
c
1.125 1.130
1.12028.45
D
0.395
E
e
0.044 0.050
0.435 0.440
0.082
0
0.031
0.031
0.37
Max.
Min. Nom. Max.
0.047
0.0410.0390.037
18.31
10.06
11.56
0.004
o
e
1
HE
A
y
L
θ
e
1
c
Y
A
A
2
A
1
E
1
L
L
b
0.10 (0.004)
θ
c
L
S
y
θ
Dimension in inches
Symbol
Min. Nom.
A
0.002
1
A
2
A
0.010 0.014 0.018
b
0.005 0.006 0.007
c
0.721 0.725 0.729
D
0.396 0.400 0.404
E
0.455 0.463 0.471
D
H
e
0.016 0.020 0.024
L
1
L
Y
o
θ0505
Dimension in mm
Max.
0.635
2.41
0.381
0.178
10.03
1.12
11.05
2.06
0
1.20
1.051.00
0.35 0.45
0.15 0.17
18.41 18.51
10.16 10.26
11.76 11.96
0.80
0.60
0.50
0.80
0.10
3.5853.251
2.54 2.67
28.58
10.16
1.27
9.40
11.18 11.30
o
0.148
0.020
0.0130.007
0.4050.400
0.056
0.445
0.0451.14
0.004
10
Dimension in mm
0.05
0.95
0.25
0.12
0.40
o
Max.Nom.Min.
3.759
0.508
0.330
28.70
10.29
1.42
0.10
10
Publication Release Date: July 1998
- 9 -Revision A3
W26L010A
VERSION HISTORY
VERSIONDATEPAGEDESCRIPTION
A1May 1995Initial Issued
A2Feb. 19981, 3, 4, 5, 8 Change the relative specification from 15/20 nS to 10/12 nS
1, 8, 9Add TSOP package
6, 7Modify timing waveforms
A3Jul. 19983, 4
Revise Vcc from 3.3V ±10% to 3.3V ±5%
Headquarters
No. 4, Creation Rd. III,
Science-Based Industrial Park,
Hsinchu, Taiwan
TEL: 886-3-5770066
FAX: 886-3-5796096
http://www.winbond.com.tw/
Voice & Fax-on-demand: 886-2-27197006
Taipei Office
11F, No. 115, Sec. 3, Min-Sheng East Rd.,
Taipei, Taiwan
TEL: 886-2-27190505
FAX: 886-2-27197502
Note: All data and specifications are subject to change without notice.
Winbond Electronics (H.K.) Ltd.
Rm. 803, World Trade Square, Tower II,
123 Hoi Bun Rd., Kwun Tong,
Kowloon, Hong Kong
TEL: 852-27513100
FAX: 852-27552064
- 10 -
Winbond Electronics North America Corp.
Winbond Memory Lab.
Winbond Microelectronics Corp.
Winbond Systems Lab.
2727 N. First Street, San Jose,
CA 95134, U.S.A.
TEL: 408-9436666
FAX: 408-5441798
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