N25S818HA_12 Datasheet, PDF (2/12 Pages) ON Semiconductor – 256 kb Low Power Serial SRAMs

1
CS
SO
NC
VSS
N25S818HA
TSSOP−8
VCC
HOLD
SCK
SI
1
CS
SO
NC
VSS
Figure 1. Pin Connections
(Top View)
SOIC−8
VCC
HOLD
SCK
SI
Table 1. DEVICE OPTIONS
Part Number
N25S818HAS2
N25S818HAT2
Density
256 Kb
Power
Supply (V)
1.8
Speed
(MHz)
16
Table 2. PIN NAMES
Pin Name
CS
SCK
SI
SO
HOLD
NC
V_CC
V_SS
Pin Function
Chip Select Input
Serial Clock Input
Serial Data Input
Serial Data Output
Hold Input
No Connect
Power
Ground
Package
SOIC
TSSOP
Typical Standby
Current
200 nA
Read/Write
Operating Current
3 mA @ 1 Mhz
SCK
HOLD
Clock
Circuitry
CS
Decode
Logic
SI
Data In
Receiver
SRAM
Array
SO
Data Out
Buffer
Figure 2. Functional Block Diagram
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2