CY7C057V-12AC Cypress Semiconductor Corp, CY7C057V-12AC Datasheet - Page 10

• Manufacturer Part Number: CY7C057V-12AC
• Description: IC SRAM 32KX36 3.3V ASYN 144LQFP
• Manufacturer: Cypress Semiconductor Corp

Specifications of CY7C057V-12AC

• Format - Memory: RAM
• Memory Type: SRAM - Dual Port, Asynchronous
• Memory Size: 1.152M (32K x 36)
• Speed: 12ns
• Interface: Parallel
• Voltage - Supply: 3.3V
• Operating Temperature: 0°C ~ 70°C
• Package / Case: 144-LQFP
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Other names: 428-1173

Switching Characteristics
Data Retention Mode
The CY7C056V and CY7C057V are designed with battery
backup in mind. Data retention voltage and supply current are
guaranteed over temperature. The following rules ensure data
retention:
Notes:
Document #: 38-06055 Rev. **
20. t
21. CE = V
1. Chip Enable (CE)
2. CE must be kept between V
3. The RAM can begin operation >t
t
t
t
t
t
t
t
t
t
t
t
BHC
PS
WB
WH
BDD
INS
INR
SOP
SWRD
SPS
SAA
Busy Timing
Interrupt Timing
Semaphore Timing
within V
during the power-up and power-down transitions.
minimum operating voltage (3.15 volts).
Parameter
BDD
[20]
is a calculated parameter and is the greater of t
DD
DD
, V
in
to V
= V
[19]
DD
SS
BUSY HIGH from CE HIGH
Port Set-Up for Priority
R/W LOW after BUSY (Slave)
R/W HIGH after BUSY HIGH (Slave)
BUSY HIGH to Data Valid
INT Set Time
INT Reset Time
SEM Flag Update Pulse (OE or SEM)
SEM Flag Write to Read Time
SEM Flag Contention Window
SEM Address Access Time
[19]
to V
– 0.2V.
[3]
DD
must be held HIGH during data retention,
, T
A
= 25 C. This parameter is guaranteed but not tested.
DD
Description
– 0.2V and 70% of V
Over the Operating Range
RC
after V
WDD
–t
DD
PWE
reaches the
(actual) or t
DD
DDD
[13]
–t
SD
Min.
(continued)
11
10
(actual).
5
0
5
5
Timing
V
CE
ICC
-12
CC
Parameter
DR1
Max.
12
12
12
12
12
Min.
13
10
CY7C056V
CY7C057V
5
0
5
5
3.15V
-15
@ VDD
Data Retention Mode
Test Conditions
V
CC
Max.
15
15
15
15
15
V
to V
CC
DR
CC
2.0V
= 2V
– 0.2V
Min.
15
10
5
0
5
5
3.15V
-20
[21]
Max.
CY7C056V
CY7C057V
20
20
20
20
20
Max.
50
Page 10 of 23
V
t
IH
RC
Unit
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
Unit
A