OMO ElectronicOMO Electronic
Expand menu
Hello, Sign inMy Account
0 Cart

CY62256VNLL-70ZRXET

P1-P3P4-P6P7-P9P10-P12P13-P13
CY62256VN
256K (32K x 8) Static RAM
Cypress Semiconductor Corporation • 198 Champion Court • San Jose
,
CA 95134-1709 • 408-943-2600
Document #: 001-06512 Rev. *B Revised September 25, 2009
Features
■
Temperature Ranges
❐
Commercial: 0°C to 70°C
❐
Industrial: –40°C to 85°C
❐
Automotive-A: –40°C to 85°C
❐
Automotive-E: –40°C to 125°C
■
Speed: 70 ns
■
Low Voltage Range: 2.7V to 3.6V
■
Low Active Power and Standby Power
■
Easy Memory Expansion with CE and OE Features
■
TTL Compatible Inputs and Outputs
■
Automatic Power Down when Deselected
■
CMOS for Optimum Speed and Power
■
Available in Standard Pb-free and non Pb-free 28-Pin (300-mil)
Narrow SOIC, 28-Pin TSOP-I, and 28-Pin Reverse TSOP-I
Packages
Functional Description
The CY62256VN
[1]
family is composed of two high performance
CMOS static RAM’s organized as 32K words by 8 bits. Easy
memory expansion is provided by an active LOW chip enable
(CE
) and active LOW output enable (OE) and tristate drivers.
These devices have an automatic power down feature, reducing
the power consumption by over 99% when deselected.
An active LOW write enable signal (WE
) controls the
writing/reading operation of the memory. When CE
and WE
inputs are both LOW, data on the eight data input/output pins
(I/O
0
through I/O
7
) is written into the memory location addressed
by the address present on the address pins (A
0
through A
14
).
Reading the device is accomplished by selecting the device and
enabling the outputs, CE and OE active LOW, while WE remains
inactive or HIGH. Under these conditions, the contents of the
location addressed by the information on address pins are
present on the eight data input/output pins.
The input/output pins remain in a high impedance state unless
the chip is selected, outputs are enabled, and write enable (WE
)
is HIGH.
.
A
9
A
8
A
7
A
6
A
5
A
4
A
3
A
2
COLUMN
DECODER
ROW DECODER
SENSE AMPS
INPUTBUFFER
POWER
DOWN
WE
OE
I/O
0
CE
I/O
1
I/O
2
I/O
3
32K x 8
ARRA
Y
I/O
7
I/O
6
I/O
5
I/O
4
A
10
A
13
A
11
A
12
A
A
14
A
1
0
Logic Block Diagram
Note
1. For best practice recommendations, refer to the Cypress application note “System Design Guidelines” on http://www.cypress.com.
[+] Feedback
CY62256VN
Document #: 001-06512 Rev. *B Page 2 of 13
Pin Configurations
Product Portfolio
Product Range
V
CC
Range (V)
Power Dissipation
Operating, I
CC
(mA) Standby, I
SB2
(μA)
Min Typ
[2]
Max Typ
[2]
Max Typ
[2]
Max
CY62256VNLL Com’l 2.7 3.0 3.6 11 30 0.1 5
CY62256VNLL Ind’l 2.7 3.0 3.6 11 30 0.1 10
CY62256VNLL Automotive-A 2.7 3.0 3.6 11 30 0.1 10
CY62256VNLL Automotive-E 2.7 3.0 3.6 11 30 0.1 130
1
2
3
4
5
6
7
8
9
10
11
14
15
16
20
19
18
17
21
24
23
22
Top View
Narrow SOIC
12
13
25
28
27
26
GND
A
6
A
7
A
8
A
9
A
10
A
11
A
12
A
13
WE
V
CC
A
4
A
3
A
2
A
1
I/O
7
I/O
6
I/O
5
I/O
4
A
14
A
5
I/O
0
I/O
1
I/O
2
CE
OE
A
0
I/O
3
22
23
24
25
26
27
28
1
2
5
10
11
15
14
13
12
16
19
18
17
3
4
20
21
7
6
8
9
OE
A
1
A
2
A
3
A
4
WE
V
CC
A
5
A
6
A
7
A
8
A
9
A
0
CE
I/O
7
I/O
6
I/O
5
GND
I/O
2
I/O
1
I/O
4
I/O
0
A
14
A
10
A
11
A
13
A
12
I/O
3
TSOP I
Top View
(not to scale)
Reverse Pinout
22
23
24
25
26
27
28
1
2
5
10
11
15
14
13
12
16
19
18
17
3
4
20
21
7
6
8
9
OE
A
1
A
2
A
3
A
4
WE
V
CC
A
5
A
6
A
7
A
8
A
9
A
0
CE
I/O
7
I/O
6
I/O
5
GND
I/O
2
I/O
1
I/O
4
I/O
0
A
14
A
10
A
11
A
13
A
12
I/O
3
TSOP I
Top View
(not to scale)
Pin Definitions
Pin Number Type Description
1–10, 21, 23–26 Input A
0
–A
14
. Address Inputs
11–13, 15–19 Input/Output I/O
0
–I/O
7
. Data lines. Used as input or output lines depending on operation
27 Input/Control WE
. When selected LOW, a WRITE is conducted. When selected HIGH, a READ is conducted
20 Input/Control CE
. When LOW, selects the chip. When HIGH, deselects the chip
22 Input/Control OE
. Output Enable. Controls the direction of the I/O pins. When LOW, the I/O pins behave as
outputs. When deasserted HIGH, I/O pins are tristated, and act as input data pins
14 Ground GND. Ground for the device
28 Power Supply V
CC
. Power supply for the device
Note
2. Typical values are included for reference only and are not guaranteed or tested. Typical values are measured at V
CC
= V
CC
Typ, T
A
= 25°C, and t
AA
= 70 ns.
[+] Feedback
CY62256VN
Document #: 001-06512 Rev. *B Page 3 of 13
Maximum Ratings
Exceeding maximum ratings may impair the useful life of the
device. These user guidelines are not tested.
Storage Temperature ................................ –65°C to + 150°C
Ambient Temperature with
Power Applied ........................................... –55°C to + 125°C
Supply Voltage to Ground Potential
(Pin 28 to Pin 14)...........................................–0.5V to + 4.6V
DC Voltage Applied to Outputs
in High-Z State
[3]
....................................–0.5V to V
CC
+ 0.5V
DC Input Voltage
[3]
................................–0.5V to V
CC
+ 0.5V
Output Current into Outputs (LOW).............................20 mA
Static Discharge Voltage.......................................... > 2001V
(per MIL-STD-883, Method 3015)
Latch-up Current.................................................... > 200 mA
Operating Range
Device Range
Ambient
Temperature
(T
A
)
[4]
V
CC
CY62256VN Commercial 0
°
C to +70
°
C 2.7V to 3.6V
Industrial −40
°
C to +85
°
C
Automotive-A −40
°
C to +85
°
C
Automotive-E −40
°
C to +125
°
C
Electrical Characteristics
Over the Operating Range
Parameter Description Test Conditions
-70
Unit
Min Typ
[2]
Max
V
OH
Output HIGH Voltage I
OH
= −1.0 mA V
CC
= 2.7V 2.4 V
V
OL
Output LOW Voltage I
OL
= 2.1 mA V
CC
= 2.7V 0.4 V
V
IH
Input HIGH Voltage 2.2 V
CC
+ 0.3V V
V
IL
Input LOW Voltage –0.5 0.8 V
I
IX
Input Leakage Current GND < V
IN
< V
CC
Com’l/Ind’l/Auto-A –1 +1 μA
Auto-E –10 +10 μA
I
OZ
Output Leakage Current GND < V
IN
< V
CC
, Output
Disabled
Com’l/Ind’l/Auto-A –1 +1 μA
Auto-E –10 +10 μA
I
CC
V
CC
Operating Supply
Current
V
CC
= 3.6V, I
OUT
= 0 mA,
f = f
MAX
= 1/t
RC
All Ranges 11 30 mA
I
SB1
Automatic CE Power
Down Current -
TTL Inputs
V
CC
= 3.6V, CE > V
IH
,
V
IN
> V
IH
or V
IN
< V
IL
, f = f
MAX
All Ranges 100 300 μA
I
SB2
Automatic CE Power
Down Current- CMOS
Inputs
V
CC
= 3.6V, CE > V
CC
– 0.3V
V
IN
> V
CC
– 0.3V or V
IN
< 0.3V,
f = 0
Com’l 0.1 5 μA
Ind’l/Auto-A 10
Auto-E 130
Notes
3. V
IL
(min)
= –2.0V for pulse durations of less than 20 ns.
4. T
A
is the “Instant-On” case temperature.
[+] Feedback
P1-P3P4-P6P7-P9P10-P12P13-P13

CY62256VNLL-70ZRXET

Mfr. #:
Buy CY62256VNLL-70ZRXET
Manufacturer:
Cypress Semiconductor
Description:
IC SRAM 256K PARALLEL 28TSOP I
Lifecycle:
New from this manufacturer.
Delivery:
DHL FedEx Ups TNT EMS
Payment:
T/T Paypal Visa MoneyGram Western Union

Products related to this Datasheet