S2100R データシートの表示（PDF） - Seiko Instruments Inc
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S2100R Datasheet PDF : 9 Pages
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64-bit FUSE ROM
S-2100R
The S-2100R is a CMOS 64-bit serial FUSE ROM. It has a low standby
current (0.3 mA max., VDD=1.5 V) and has a wide operating voltage
range. Data can be read serially by clock pulses from address 1 to
address 64. All the addresses are initialized at “H” so writing into “L”
can be done only once.
n Features
· Low standby current (0.3 mA max., VDD=1.5 V)
· Wide operating voltage range
n Pin Assignment
n Applications
· Pager ID ROM
· Cordless telephone
· Security equipment
DATA 1
CE/PE 2
COUNTER
OUT
3
VSS 4
8-pin DIP
Top view
8 VDD
7 RST
6 CLK
5 PD/VPP
DATA 1
CE/PE 2
COUNTER
OUT
3
VSS 4
8-pin SOP
Top view
8 VDD
7 RS
6 CL
5 PD/VPP
n Block Diagram
COUNTER
OUT ƒ
CLK †
RST ‡
CE/PE ‚
DATA •
Figure 1
COUT
CL
READ / RS
WRITE
CONTROL
6-BIT
COUNTER
VP
DIN
DOUT
DE
DATA
CONTROL
VPI
A2
ROW
A3
A4
DECODER
A5
A1
A0
VPP
CONTROL
Figure 2
64-BIT
FUSE ROM
MEMORY
CELL
MATRIX
SENSE
AMP.
COLUMN
DECODER
VPP
ˆVDD
„VSS
…
PD/VPP
Seiko Instruments Inc.
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