描述：GENERAL DESCRIPTION Zilog"s Z86E04/E08 Microcontrollers (MCU) are One-Time Programmable (OTP) members of Zilog’s single-chip Z8® MCU family that allow easy software development, debug, prototyping, and small production runs not economically desirable with masked ROM versions. For applications demanding powerful I/O capabilities, the Z86E04/E08"s dedicated input and output lines are grouped into three ports, and are configurable under software control to provide timing, status signals, or parallel I/O. Two on-chip counter/timers, with a large number of user selectable modes, offload the system of administering real-time tasks such as counting/timing and I/O data communications. FEATURES ■ 14 Input/Output Lines ■ Six Vectored, Prioritized Interrupts (3 falling edge, 1 rising edge, 2 timers) ■ Two Analog Comparators ■ Program Options:    – Low Noise    – ROM Protect    – Auto Latch    – Watch-Dog Timer (WDT)    – EPROM/Test Mode Disable ■ Two Programmable 8-Bit Counter/Timers, Each with 6-Bit Programmable Prescaler ■ WDT/ Power-On Reset (POR) ■ On-Chip Oscillator that Accepts XTAL, Ceramic Resonance, LC, RC, or External Clock ■ Clock-Free WDT Reset ■ Low-Power Consumption (50 mw typical) ■ Fast Instruction Pointer (1µs @ 12 MHz) ■ RAM Bytes (125)