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1. Describe
Microchip Technology Inc. 11AA160T-I/TT devices are 1 Kbit to 16 Kbit serial electrically erasable PROMs. These devices are organized in x8-bit memory blocks and support Patented** single I/O UNI/O® serial bus. Using Manchester encoding techniques, 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. The low-voltage design allows operation down to 1.8V, with standby and operating currents of only 1 uA and 1 mA, respectively. The 11AA160T-I/TT family is available in standard packages including 8-pin PDIP and SOIC, and advanced packages including 3-pin SOT-23, 3-pin TO-92, 4-pin chip scale, 8-pin TDFN and 8-pin pin pin MSOP.
2. Feature
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 to 2,048 x 8-bit organization
4. Schmitt trigger input for noise suppression
5. Output slope control to eliminate ground bounce
6. Up to 100 kbps. Bit rate - 100 kHz equivalent Clock frequency
7. Self-timed write cycles (including auto-erase)
8. Up to 16-byte page write buffer
9. Added control status registers:
- Write enable latch bit
- write bit
10. Block write protection:
- Protect none, 1/4, 1/2 or all arrays
11. Built-in write protection:
- Power on/off data protection circuit
- Write enable latch
12. High reliability:
- Endurance: 1,000,000 erase/write cycles
- Data retention: > 200 years
- ESD protection: > 4,000V
13. 3-Pin SOT-23 and TO-92 Packages
14. 4-pin chip scale package
15. 8-Pin PDIP, SOIC, MSOP, TDFN Packages
16. Lead-free and RoHS compliant
17. Available temperature range:
- Industrial (I): -40°C to +85°C
- Automotive (E): -40°C to +125°C
3. Pin configuration
5. Pin Description
6. Function Description
The 11AA160 series serial EEPROMs support the UNI/O® protocol. They can be used 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. The 11AA160 device contains an 8-bit instruction register. These devices are accessed via SCIO pins, with address and data transferred MSb first, LSb last. Data is embedded into the I/O stream by Manchester encoding. The bus is clocked by a controlling master, which controls bus access and initiates all operations, while the 11AA160 operates as a slave. Both master and slave can operate as transmitter or receiver, but the master device determines which mode is active.
