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ON Semiconductor |
N64S830HA
64 kb Low Power Serial
SRAMs
8 k x 8 Bit Organization
Introduction
The ON Semiconductor serial SRAM family includes several
integrated memory devices including this 64 k serially accessed Static
Random Access Memory, internally organized as 8 k words by 8 bits.
The devices are designed and fabricated using ON Semiconductor’s
advanced CMOS technology to provide both high−speed performance
and low power. The devices operate with a single chip select (CS)
input and use a simple Serial Peripheral Interface (SPI) serial bus. A
single data in and data out line is used along with a clock to access data
within the devices. The N64S830HA devices include a HOLD pin that
allows communication to the device to be paused. While paused, input
transitions will be ignored. The devices can operate over a wide
temperature range of −40°C to +85°C and can be available in several
standard package offerings.
Features
• Power Supply Range: 2.5 to 3.6 V
• Very Low Standby Current: As low as 1 mA
• Very Low Operating Current: As low as 3 mA
• Simple Memory Control:
Single chip select (CS)
Serial input (SI) and serial output (SO)
• Flexible Operating Modes:
Word read and write
Page mode (32 word page)
Burst mode (full array)
• Organization: 8 k x 8 bit
• Self Timed Write Cycles
• Built−in Write Protection (CS High)
• HOLD Pin for Pausing Communication
• High Reliability: Unlimited write cycles
• Green SOIC and TSSOP
• These Devices are Pb−Free, Halogen Free/BFR Free and are RoHS
Compliant
http://onsemi.com
MARKING
DIAGRAMS
TSSOP−8
T SUFFIX
CASE 948AL
B125
XXXXYZZ
SOIC−8
S SUFFIX
CASE 751BD
B115
XXXXYZZ
XXXX
Y
ZZ
= Date Code
= Assembly Code
= Lot Traceability
ORDERING INFORMATION
Device
N64S830HAS22I
N64S830HAT22I
N64S830HAS22IT
N64S830HAT22IT
Package
SOIC−8
(Pb−Free)
TSSOP−8
(Pb−Free)
SOIC−8
(Pb−Free)
TSSOP−8
(Pb−Free)
Shipping†
100 Units / Tube
100 Units / Tube
3000 / Tape &
Reel
3000 / Tape &
Reel
†For information on tape and reel specifications,
including part orientation and tape sizes, please
refer to our Tape and Reel Packaging Specification
Brochure, BRD8011/D.
© Semiconductor Components Industries, LLC, 2012
June, 2012 − Rev. 12
1
Publication Order Number:
N64S830HA/D
CS
SO
NC
VSS
1
N64S830HA
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
N64S830HAS2
N64S830HAT2
Density
64 Kb
Power
Supply (V) Speed (MHz)
3.0 20
Package
SOIC
TSSOP
Typical Standby
Current
1 mA
Table 2. PIN NAMES
Pin Name
CS
SCK
SI
SO
HOLD
NC
VCC
VSS
Pin Function
Chip Select Input
Serial Clock Input
Serial Data Input
Serial Data Output
Hold Input
No Connect
Power
Ground
SCK
HOLD
Clock
Circuitry
Read/Write
Operating Current
3 mA @ 1 Mhz
CS
Decode
Logic
SDI
Data In
Receiver
64 Kb
SRAM
Array
SDO
Data Out
Buffer
Figure 2. Functional Block Diagram
http://onsemi.com
2
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