LRS1338A Datasheet, PDF (28/36 Pages) Sharp Electrionic Components – Stacked Chip 8M Flash Memory and 2M SRAM

LRS1338A
Stacked Chip (8M Flash & 2M SRAM)
SRAM*
Description
The LRS1388A is a 2M bit static RAM organized as
262,144 × 8 bit which provides low-power standby
mode.
Features
• Access Time: 85 ns (MAX.)
• Operating Current:
– 40 mA (MAX.)
– 25 mA (MAX.)
• Standby Current: 40 µA (MAX.)
• Data Retention Current: 0.6 µA (TYP. V_CCDR = 3 V,
T_A = 25°C)
• Single Power Supply: 2.7 V to 3.6 V
• Operating Temperature: -40°C to +85°C
• Fully Static Operation
• Three-state Output
• Not Designed or Rated as Radiation Hardened
• P-Type Bulk Silicon
NOTE: *In the SRAM section all reference to pins, commands, volt-
age, etc. refer only to the SRAM portion of this chip.
Table 12. Truth Table
CE WE OE
MODE
I/O₀ - I/O₇
H
X
X Standby
HIGH Impedance
L
L
X Write
Data Input
L
H
L Read
Data Output
L
H
H Output Disable HIGH Impedance
NOTE: X = Don’t care, L= LOW, H = HIGH.
SUPPLY CURRENT
Standby (I_SB)
Active (I_CC)
Active (I_CC)
Active (I_CC)
28
Data Sheet