47L04/47C04/47L16/47C16
4-Kbit/16-Kbit I2C Serial EERAM
Device Selection Table
Part Number Density VCC Range Maximum Clock Frequency Temperature Ranges
Packages
P, SN, ST
47L04
47C04
47L16
47C16
4 Kbit
4 Kbit
2.7V-3.6V
4.5V-5.5V
2.7V-3.6V
4.5V-5.5V
1 MHz
1 MHz
1 MHz
1 MHz
I, E
I, E
I, E
I, E
P, SN, ST
P, SN, ST
P, SN, ST
16 Kbit
16 Kbit
Features
Description
• 4 Kbit/16 Kbit SRAM with EEPROM Backup:
The
Microchip
Technology
Inc.
47L04/47C04/47L16/47C16 (47XXX) is a 4/16 Kbit
SRAM with EEPROM backup. The device is organized
as 512 x 8 bits or 2,048 x 8 bits of memory and utilizes
the I2C serial interface. The 47XXX provides infinite
read and write cycles to the SRAM while EEPROM
cells provide high-endurance nonvolatile storage of
data. With an external capacitor, SRAM data is
automatically transferred to the EEPROM upon loss of
power. Data can also be transferred manually by using
either the Hardware Store pin or software control.
Upon power-up, the EEPROM data is automatically
recalled to the SRAM. Recall can also be initiated
through software control.
- Internally organized as 512 x 8 bits (47X04)
or 2,048 x 8 bits (47X16)
- Automatic Store to EEPROM array upon
power-down (using optional external
capacitor)
- Automatic Recall to SRAM array upon
power-up
- Hardware Store pin for manual Store
operations
- Software commands for initiating Store and
Recall operations
- Store time 8 ms maximum (47X04) or
25 ms maximum (47X16)
• Nonvolatile External Event Detect Flag
• High Reliability:
- Infinite read and write cycles to SRAM
- More than one million store cycles to
EEPROM
- Data retention: >200 years
- ESD protection: >4,000V
• High-Speed I2C Interface:
Packages available
• 8-Lead PDIP
• 8-Lead SOIC
• 8-Lead TSSOP
Package Types
- Industry standard 100 kHz, 400 kHz and
1 MHz
- Zero cycle delay reads and writes
- Schmitt Trigger inputs for noise suppression
- Cascadable up to four devices
• Write Protection:
PDIP/SOIC/TSSOP
VCAP
1
8
VCC
A1
A2
2
3
4
7
6
5
HS
SCL
SDA
- Software write protection from 1/64 of SRAM
array to whole array
VSS
• Low-Power CMOS Technology:
- 200 µA active current typical
- 40 µA standby current (maximum)
• Available Temperature Ranges:
- Industrial (I):
- Extended (E):
-40°C to +85°C
-40°C to +125°C
• Automotive AEC-Q100 Qualified
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DS20005371E-page 1