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SST30VR041-70-E-WH Datasheet

  • SST30VR041-70-E-WH

  • 4 Mbit ROM + 1 Mbit / 256 Kbit SRAM ROM/RAM Combo

  • 10頁

  • SST   SST

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4 Mbit ROM + 1 Mbit / 256 Kbit SRAM ROM/RAM Combo
SST30VR041 / SST30VR043
SST30VR041/0434 Mb Mask ROM (x8) + 1 Mb / 256 Kbit SRAM (x8) Combo
Preliminary Specifications
FEATURES:
鈥?ROM + SRAM ROM/RAM Combo
鈥?SST30VR041: 512K x8 ROM + 128K x8 SRAM
鈥?SST30VR043: 512K x8 ROM + 32K x8 SRAM
鈥?ROM/RAM combo on a monolithic chip
鈥?Equivalent ComboMemory (Flash + SRAM):
SST31LF041A for code development and
pre-production
鈥?Wide Operating Voltage Range: 2.7-3.3V
鈥?Chip Access Time
鈥?SST30VR041 70 ns and 150 ns
鈥?SST30VR043 150 ns
鈥?Low Power Dissipation:
鈥?Standby: 1.0 碌W (Typical)
鈥?Operating: 3.0 mW (Typical)
鈥?Fully Static Operation
鈥?No clock or refresh required
鈥?Three state Outputs
鈥?Packages Available
鈥?32-pin TSOP (8mm x14mm)
PRODUCT DESCRIPTION
The SST30VR041/043 are ROM/RAM combo chips con-
sisting of 4 Mbit Read Only Memory organized as 512
KBytes and a Static Random Access Memory organized
as either 128 or 32 KBytes. Output Enable Input (OE#) is
pin-shared with RAMCS# (RAM Enable Input) signal in
order to maintain the standard 32-pin TSOP package.
The device is fabricated using SST鈥檚 advanced CMOS low
power process technology.
The SST30VR041/043 have an output enable input for pre-
cise control of the data outputs. It also has two (2) separate
chip enable inputs for selection of either RAM or ROM and
for minimizing current drain during power-down mode.
The SST30VR041/043 is particularly well suited for use in
low voltage (2.7-3.3V) supplies such as pagers, organizers
and other handheld applications.
F
UNCTIONAL
B
LOCK
D
IAGRAM
RAMCS#
ROMCS#
OE#/RAMCS#
WE#
Control
Circuit
OE#
WE#
Data Buffer
RAM
Address Buffer
DQ7-DQ0
ROMCS#
OE#
AMS-A0
ROM
Note: AMS = Most Significant Address
381 ILL B1.2
漏2001 Silicon Storage Technology, Inc.
S71134-02-000 4/01
381
1
The SST logo and SuperFlash are registered trademarks of Silicon Storage Technology, Inc.
ComboMemory is a trademark of Silicon Storage Technology, Inc.
These specifications are subject to change without notice.

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