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SST30VR043-500-I-KH Datasheet

  • SST30VR043-500-I-KH

  • SRAM/ROM

  • 139.54KB

  • 12頁(yè)

  • ETC

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4 Megabit ROM + 256 Kilobit SRAM ROM/RAM Combo
SST30VR043
Data Sheet
FEATURES:
鈥?Organized as 512K x8 ROM + 32K x8 SRAM
鈥?ROM/RAM combo on a monolithic chip
鈥?Wide Operating Voltage Range: 2.7-3.3V
鈥?Chip Access Time
鈥?2.7V Operation: 500 ns (Max.)
鈥?Low Power Dissipation:
鈥?Standby
3.0V Operation: 1.0碌W (Typical)
鈥?Operating
3.0V Operation: 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 x 20mm)
鈥?32-Pin STSOP (8mm x13.4mm)
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PRODUCT DESCRIPTION
The SST30VR043 is a ROM/RAM combo chip consist-
ing of 4 Mbit Read Only Memory organized as 512
KBytes and a 256 Kbit Static Random Access Memory
organized as 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 SST30VR043 has an output enable input for precise
control of the data outputs. It also has two (2) separate
chip enable inputs for selection of either RAM or ROM
and minimize current drain during power-down mode.
The SST30VR043 is particularly well suited for use in low
voltage (2.7-3.3V) operation such as pagers, organizers
and other handheld applications.
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F
UNCTIONAL
B
LOCK
D
IAGRAM OF
SST30VR043 ROM/RAM C
OMBO
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Data Buffer
RAMCS#
ROMCS#
OE#/RAMCS#
WE#
Control
Circuit
OEB
WEB
256K
RAM
Address Buffer
DQ0-DQ7
13
14
15
ROMCS#
OEB
A15-A18
A0-A14
4M
ROM
378 ILL B1.2
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漏 2000 Silicon Storage Technology, Inc.
The SST logo and SuperFlash are registered trademarks of Silicon Storage Technology, Inc. ComboMemory is a trademark of
378-03 2/00
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Silicon Storage Technology, Inc. These specifications are subject to change without notice.
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