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參數(shù)資料
| 型號： | Z86C8416SSC |
| 廠商： | ZILOG INC |
| 元件分類： | 微控制器/微處理器 |
| 英文描述： | Z8 MCU MICROCONTROLLERS |
| 中文描述： | 8-BIT, MROM, 16 MHz, MICROCONTROLLER, PDSO28 |
| 封裝： | PLASTIC, SOIC-28 |
| 文件頁數(shù)： | 16/46頁 |
| 文件大?。?/td> | 957K |
| 代理商： | Z86C8416SSC |
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Z86C83/C84
Z8
MCU Microcontrollers
16
DS96DZ80203
PIN FUNCTIONS
Application Precaution
The production test-mode environment may be enabled
accidentally during normal operation if
excessive noise
surges above V
cc
occur on the /RESET pin.
Recommendations for dampening voltage surges in both
test and OTP mode include the following:
I
Using a clamping diode to /RESET
I
Adding a capacitor to the affected pin
XTAL1.
Crystal 1(time-based input). This pin connects a
parallel-resonant crystal, ceramic resonator, LC network
or an external single-phase clock to the on-chip oscillator
input.
XTAL2.
Crystal 2(time-based output). This pin connects a
parallel-resonant crystal, ceramic resonator, LC network to
the on-chip oscillator output.
Port 0 P00-P06.
(P03-P06 is not available on the
Z86C84).
Port 0 is a 7-bit, bidirectional, CMOS-compatible
I/O port. These seven I/O lines can be nibble
programmable as P00-P03 input/output and P04-P06
input/output, separately (Figure 10). All input buffers are
Schmitt-triggered and output drivers are push-pull. There
is a ROM mask option to enable 100K (
±
40%) pull-up
resistors to Port 0, P00 to P02.
Port 0 Auto Latch.
(Auto Latch Mask Option available
only on P00-P02. P03-P06 has the Auto Latches
permanently enabled.)The Auto Latch provides valid
CMOS Levels when P00-P06 (P00-P02 on C84) are
selected as inputs and not externally driven. It is
impossible to determine if a non-driven input is 1 or 0,
however; the Auto Latch will sense the input condition and
drive a valid CMOS level, thereby eliminating a floating
mode that could cause excessive current. (Auto Latch is a
ROM mask option for the Z86C83, Z86C84).
Port 2 (P27-P20)
Port 2 is an 8-bit, bi-directional, CMOS-
compatible I/O port and an 8-channel muxed input to the
8-bit ADC. When configured as a digital input, by
programming the Port2 Mode register, the Port 2 register
can be evaluated to read digital data applied to Port 2, or
the ADC result register can be read to evaluate the analog
signals applied to Port 2 after configuring the ADC Control
Registers. The direction of each of the eight Port 2 I/O lines
can be configured individually (Figure 11).
In addition, all four versions of the device provide the
capability of connecting 10K (
±
20%) pull-up resistors to
each of the Port 2 I/O lines individually. The pull-ups are
connected when activated through software control of
P2RES register (Figure 67) when the corresponding Port
2 pin is configured to be an input. The pull-up resistor of a
Port 2 I/O line is automatically disabled when the
corresponding I/O is an output, regardless of the state of
the corresponding P2RES bit value.
Note:
The Z86C83/C84 Emulator does not emulate the
P2RES Register. Selection of the pull-ups are done via
jumper settings on the emulator.
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| Z86C8416VEC | Z8 MCU MICROCONTROLLERS |
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相關代理商/技術參數(shù) |
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| Z86C8416VEC | 制造商:ZILOG 制造商全稱:ZILOG 功能描述:Z8 MCU MICROCONTROLLERS |
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| Z86C89-08FEC | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:8-Bit Microcontroller |
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