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23K640T-I/P Datasheet(PDF) 1 Page - Microchip Technology

Part # 23K640T-I/P
Description  64K SPI Bus Low-Power Serial SRAM
Download  28 Pages
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Manufacturer  MICROCHIP [Microchip Technology]
Direct Link  http://www.microchip.com
Logo MICROCHIP - Microchip Technology

23K640T-I/P Datasheet(HTML) 1 Page - Microchip Technology

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 2010 Microchip Technology Inc.
DS22126D-page 1
23A640/23K640
Device Selection Table
Features:
• Max. Clock 20 MHz
• Low-Power CMOS Technology:
- Read Current: 3 mA at 1 MHz
- Standby Current: 4
A Max. at +85°C
• 8192 x 8-bit Organization
• 32-Byte Page
•HOLD pin
• Flexible Operating modes:
- Byte read and write
- Page mode (32 Byte Page)
- Sequential mode
• Sequential Read/Write
• High Reliability
• Temperature Ranges Supported:
• Pb-Free and RoHS Compliant, Halogen Free
Pin Function Table
Description:
The Microchip Technology Inc. 23X640 are 64 Kbit
Serial SRAM devices. The memory is accessed via a
simple Serial Peripheral Interface (SPI) compatible
serial bus. The bus signals required are a clock input
(SCK) plus separate data in (SI) and data out (SO)
lines. Access to the device is controlled through a Chip
Select (CS) input.
Communication to the device can be paused via the
hold pin (HOLD). While the device is paused,
transitions on its inputs will be ignored, with the
exception of Chip Select, allowing the host to service
higher priority interrupts.
The 23X640 is available in standard packages
including 8-lead PDIP and SOIC, and advanced
packaging including 8-lead TSSOP.
Package Types (not to scale)
Part Number
VCC Range
Page Size
Temp. Ranges
Packages
23K640
2.7-3.6V
32 Byte
I, E
P, SN, ST
23A640
1.5-1.95V
32 Byte
I
P, SN, ST
- Industrial (I):
- Automotive (E):
-40
C
-40
C
to
to
+85
C
+125
C
Name
Function
CS
Chip Select Input
SO
Serial Data Output
VSS
Ground
SI
Serial Data Input
SCK
Serial Clock Input
HOLD
Hold Input
VCC
Supply Voltage
CS
SO
NC
VSS
1
2
3
4
8
7
6
5
VCC
HOLD
SCK
SI
PDIP/SOIC/TSSOP
(P, SN, ST)
64K SPI Bus Low-Power Serial SRAM


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