CMOS 128-Word and 256-Word by 8-Bit Static RAMs
_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ Random-Access Memories (RAMs)
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M~~~O:I :O:SI
NC 3
VSS 4 VIEW...
Description
_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ Random-Access Memories (RAMs)
Product Preview
M~~~O:I :O:SI
NC 3
VSS 4 VIEWTOP
6 CE
5 ss
92CS-3786!5
TERMINAL ASSIGNMENT
CDP68HC68R1, CDP68HC68R2
CMOS 128-Word (CDP68HC68R1) and
256-Word (CDP68HC68R2) by
8-Bit Static RAMs
Features:
Fully static operation Operating voltage range:
3 VtoS.S V
Typical standby current=1 pA Directly compatible with
RCA/Motorola SPI bus
Separate data input and threestate data output pins
Input data and clock buffers gated off with chip enable
Automatic sequencing for fast multiple-byte accesses
Low minimum data retention voltage: 2 V
Wide operating temperature range: -40· C to +8S· C
The RCA CDP68HC68R1 and CDP68HC68R2are 128-word and 256-word by 8-bit static random-access memories, respectively. The memories are intended for use in systems utilizing a synchronous serial three-wire (clock, data in, and data out) interface where minimum package size, interconnect wiring,...
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