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TO-92-3
Integrated Circuits (ICs)

AT21CS01-TOHM10-B

Obsolete
Microchip Technology

SINGLE-WIRE 1-KBIT (128 X 8) SERIAL EEPROM WITH FACTORY-PROGRAMMED 64-BIT SERIAL NUMBER

Deep-Dive with AI

Search across all available documentation for this part.

DocumentsDatasheetInterfacing PIC MCUs with Single-Wire Serial EEPROMs+4
TO-92-3
Integrated Circuits (ICs)

AT21CS01-TOHM10-B

Obsolete
Microchip Technology

SINGLE-WIRE 1-KBIT (128 X 8) SERIAL EEPROM WITH FACTORY-PROGRAMMED 64-BIT SERIAL NUMBER

Deep-Dive with AI

DocumentsDatasheetInterfacing PIC MCUs with Single-Wire Serial EEPROMs+4

Technical Specifications

Parameters and characteristics for this part

SpecificationAT21CS01-TOHM10-B
Clock Frequency125 kbps
Memory FormatEEPROM
Memory Organization128 x 8
Memory Size128 B
Memory TypeNon-Volatile
Mounting TypeThrough Hole
Operating Temperature [Max]85 °C
Operating Temperature [Min]-40 °C
Package / CaseTO-226-3, TO-92-3
Supplier Device PackageTO-92-3
TechnologyEEPROM
Voltage - Supply [Max]3.6 V
Voltage - Supply [Min]1.7 V
Write Cycle Time - Word, Page5 ms

AT21CS01 Series

Single-Wire 1-Kbit (128 x 8) Serial EEPROM with Factory-Programmed 64-Bit Serial Number

PartMemory SizeMemory TypeClock FrequencyPackage / CaseOperating Temperature [Min]Operating Temperature [Max]Supplier Device PackageMemory OrganizationMemory FormatMounting TypeVoltage - Supply [Max]Voltage - Supply [Min]TechnologyWrite Cycle Time - Word, PageMemory InterfaceWrite Cycle Time - Word, Page [custom]Write Cycle Time - Word, Page [custom]Package / Case [y]Package / Case [x]
SOT-23-3
Microchip Technology
AT21CS01-STUM11-T
128 B
Non-Volatile
125 kbps
SC-59
SOT-23-3
TO-236-3
-40 °C
85 °C
SOT-23-3
128 x 8
EEPROM
Surface Mount
3.6 V
1.7 V
EEPROM
5 ms
2 VDFN
Microchip Technology
AT21CS01-MCHM10-B
128 B
Non-Volatile
2-VDFN
-40 °C
85 °C
2-VSFN (2x2.35)
128 x 8
EEPROM
Surface Mount
3.6 V
1.7 V
EEPROM
1-Wire®
150 µs
150 µs
SOT-23-3
Microchip Technology
AT21CS01-STUM13-T
128 B
Non-Volatile
125 kbps
SC-59
SOT-23-3
TO-236-3
-40 °C
85 °C
SOT-23-3
128 x 8
EEPROM
Surface Mount
3.6 V
1.7 V
EEPROM
5 ms
8-SOIC
Microchip Technology
AT21CS01-SSHM10-B
128 B
Non-Volatile
125 kbps
8-SOIC
-40 °C
85 °C
8-SOIC
128 x 8
EEPROM
Surface Mount
3.6 V
1.7 V
EEPROM
5 ms
3.9 mm
0.154 in
SOT-23-3
Microchip Technology
AT21CS01-STUM12-T
128 B
Non-Volatile
125 kbps
SC-59
SOT-23-3
TO-236-3
-40 °C
85 °C
SOT-23-3
128 x 8
EEPROM
Surface Mount
3.6 V
1.7 V
EEPROM
5 ms
2 VDFN
Microchip Technology
AT21CS01-MCHM10-T
128 B
Non-Volatile
2-VDFN
-40 °C
85 °C
2-VSFN (2x2.35)
128 x 8
EEPROM
Surface Mount
3.6 V
1.7 V
EEPROM
1-Wire®
SOT-23-3
Microchip Technology
AT21CS01-STUM16-T
128 B
Non-Volatile
125 kbps
SC-59
SOT-23-3
TO-236-3
-40 °C
85 °C
SOT-23-3
128 x 8
EEPROM
Surface Mount
3.6 V
1.7 V
EEPROM
5 ms
8-SOIC
Microchip Technology
AT21CS01-SSHM16-T
128 B
Non-Volatile
125 kbps
8-SOIC
-40 °C
85 °C
8-SOIC
128 x 8
EEPROM
Surface Mount
3.6 V
1.7 V
EEPROM
5 ms
3.9 mm
0.154 in
4 WLCSP
Microchip Technology
AT21CS01-UUM0B-T
128 B
Non-Volatile
125 kbps
4-XFBGA
WLCSP
-40 °C
85 °C
4-WLCSP
128 x 8
EEPROM
Surface Mount
3.6 V
1.7 V
EEPROM
5 ms
TO-92-3
Microchip Technology
AT21CS01-TOHM10-B
128 B
Non-Volatile
125 kbps
TO-226-3
TO-92-3
-40 °C
85 °C
TO-92-3
128 x 8
EEPROM
Through Hole
3.6 V
1.7 V
EEPROM
5 ms

Pricing

Prices provided here are for design reference only. For realtime values and availability, please visit the distributors directly

DistributorPackageQuantity$
DigikeyBulk 1$ 0.57
Microchip DirectBAG 1$ 0.57
25$ 0.55
100$ 0.53
1000$ 0.49
5000$ 0.47
10000$ 0.44

Description

General part information

AT21CS01 Series

The Microchip AT21CS01 is a 1 Kb Serial EEPROM utilizing the

Single-Wire bus. Only two pins are needed to access the device: SI/O and GND.

The SI/O signal is a combination data and power line, providing power to the