Winbond Electronics Corporation W78ERD2
The W78ERD2 is an 8-bit microcontroller which is pin- and instruction-set-compatible with the standard 80C52. The W78ERD2 contains a 64-KB Flash EPROM whose contents may be updated insystem by a loader program stored in an auxiliary, 4-KB Flash EPROM. The W78ERD2 also contains 256 bytes of on-chip RAM; 1 KB of auxiliary RAM; four 8-bit, bidirectional and bit-addressable I/O ports; an additional 4-bit port P4; three 16-bit timer/counters; and a serial port.| Part No. | W78ERD2 |
|---|---|
| Datasheet | W78ERD2 Download |
| Manufacturer |  Winbond Electronics Corporation |
| Description | 8-BIT MICROCONTROLLER |
| Buy | Stock & Price |
GENERAL DESCRIPTION
Once the contents are confirmed, it can be protected for security. These peripherals are all supported by nine interrupt sources with 4 levels of priority. The W78ERD2 has two power-reduction modes: idle mode and power-down mode, both of which are software-selectable. Idle mode turns off the processor clock but allows peripherals to continue operating, while power-down mode stops the crystal oscillator for minimum power consumption. Power-down mode can be activated at any time and in any state without affecting the processor. 2.FEATURES
● 8-bit CMOS microcontroller● Pin-compatible with standard 80C52
● Instruction-set compatible with 80C52
● Four 8-bit I/O ports; Port 0 has internal pull-up resisters enabled by software.
● One extra 4-bit I/O port with interrupt and chip-select functions
● Three 16-bit timers
● Programmable clock out
● Programmable Counter Array (PCA) with PWM, Capture, Compare and Watchdog functions
● 9 interrupt sources with 4 levels of priority...
