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1. Description
The Microchip Technology Inc. 11AA020-I/SN devices are a family of 1 Kbit through 16 Kbit Serial Electrically Erasable PROMs. The devices are organized in blocks of x8-bit memory and support the patented** single I/O UNI/O® serial bus. By using Manchester encoding techniques, the clock and data are combined into a single, serial bit stream (SCIO), where the clock signal is extracted by the receiver to correctly decode the timing and value of each bit. Low-voltage design permits operation down to 1.8V , with standby and active currents of only 1 uA and 1 mA, respectively. The 11XX family is available in standard packages including 8-lead PDIP and SOIC, and advanced packaging including 3-lead SOT-23, 3-lead TO-92, 4-lead Chip Scale, 8-lead TDFN, and 8-lead MSOP.
2. Features
1. Single I/O, UNI/O® Serial Interface Bus
2. Low-Power CMOS Technology:
- 1 mA active current, typical
- 1 µA standby current (max.) (I-temp)
3. 128 x 8 through 2,048 x 8 Bit Organizations
4. Schmitt Trigger Inputs for Noise Suppression
5. Output Slope Control to Eliminate Ground Bounce
6. 100 kbps Max. Bit Rate – Equivalent to 100 kHz Clock Frequency
7. Self-Timed Write Cycle (including Auto-Erase)
8. Page-Write Buffer for up to 16 Bytes
9. STATUS Register for Added Control:
- Write enable latch bit
- Write-In-Progress bit
10. Block Write Protection:
- Protect none, 1/4, 1/2 or all of array
11. Built-in Write Protection:
- Power-on/off data protection circuitry
- Write enable latch
12. High Reliability:
- Endurance: 1,000,000 erase/write cycles
- Data retention: > 200 years
- ESD protection: > 4,000V
13. 3-lead SOT-23 and TO-92 Packages
14. 4-lead Chip Scale Package
15. 8-lead PDIP, SOIC, MSOP, TDFN Packages
16. Pb-Free and RoHS Compliant
17. Available Temperature Ranges:
- Industrial (I): -40°C to +85°C
- Automotive (E): -40°C to +125°C
3. Pin configuration
4. Pin Description
5. FUNCTIONAL DESCRIPTION
11AA020-I/SN Series Serial EEPROM Support UNI/O® protocol. they can be combined with Microcontrollers, including Microchip's PIC® microcontrollers, ASICs or any other available Discrete I/O lines that can be configured correctly Match the UNI/O protocol. 11AA020-I/SN devices contain an 8-bit instruction register. These devices are accessed through SCIO pins. Data is embedded in the I/O stream by Manchester encoding. The bus is controlled by a The master determines the clock cycle, controls bus access and initiates all operations. Master and slave can operates as a transmitter or receiver, but the main The device determines which mode is active.
