參數(shù)資料
型號(hào)： Z86E44
廠商： ZiLOG, Inc.
英文描述： CMOS Z8 OTP Microcontroller(CMOS Z8系列一次可編程微控制器)
中文描述： 檢察官辦公室的CMOS Z8微控制器（的CMOS Z8系列一次可編程微控制器）
文件頁(yè)數(shù)： 27/58頁(yè)
文件大?。?/td> 388K
代理商： Z86E44
Z86E33/733/E34/E43/743/E44
CMOS Z8 OTP Microcontrollers
Zilog
DS97Z8X1500
P R E L I M I N A R Y
27
1
Port 0
(P07-P00). Port 0 is an 8-bit, bidirectional, CMOS-
compatible I/O port. These eight I/O lines can be config-
ured under software control as a nibble I/O port, or as an
address port for interfacing external memory. The input
buffers are Schmitt-triggered and nibble programmed. Ei-
ther nibble output that can be globally programmed as
push-pull or open-drain. Low EMI output buffers can be
globally programmed by the software. Port 0 can be placed
under handshake control. In Handshake Mode, Port 3
lines P32 and P35 are used as handshake control lines.
The handshake direction is determined by the configura-
tion (input or output) assigned to Port 0's upper nibble. The
lower nibble must have the same direction as the upper
nibble.
For external memory references, Port 0 provides address
bits A11-A8 (lower nibble) or A15-A8 (lower and upper nib-
ble) depending on the required address space. If the ad-
dress range requires 12 bits or less, the upper nibble of
Port 0 can be programmed independently as I/O while the
lower nibble is used for addressing. If one or both nibbles
are needed for I/O operation, they must be configured by
writing to the Port 0 mode register. In ROMless mode, after
a hardware reset, Port 0 is configured as address lines
A15-A8, and extended timing is set to accommodate slow
memory access. The initialization routine can include re-
configuration to eliminate this extended timing mode. In
ROM mode, Port 0 is defined as input after reset.
Port 0 can be set in the High-Impedance Mode if selected
as an address output state, along with Port 1 and the con-
trol signals /AS, /DS, and R//W (Figure 18).
Figure 18. Port 0 Configuration
Handshake Controls
/DAV0 and RDY0
(P32 and P35)
In
1.5 2.3V Hysteresis
PAD
Port 0 (I/O)
4
4
OEN
Out
Open-Drain
Auto Latch
R 500 k
MCU
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
Z86E4400ZDF 功能描述:插座和適配器 Z86E44 44L(QFP)Adap RoHS:否 制造商:Silicon Labs 產(chǎn)品:Adapter 用于:EM35x
Z86E4400ZDP 功能描述:插座和適配器 Z86E44 40L(PDIP)Adap RoHS:否 制造商:Silicon Labs 產(chǎn)品:Adapter 用于:EM35x
Z86E4400ZDV 功能描述:插座和適配器 Z86E44 44L(PLCC)Adap RoHS:否 制造商:Silicon Labs 產(chǎn)品:Adapter 用于:EM35x
Z86E4412ASG 功能描述:8位微控制器 -MCU Z8 16K OTP 12 MHZ RoHS:否 制造商:Silicon Labs 核心:8051 處理器系列:C8051F39x 數(shù)據(jù)總線寬度:8 bit 最大時(shí)鐘頻率:50 MHz 程序存儲(chǔ)器大小:16 KB 數(shù)據(jù) RAM 大小:1 KB 片上 ADC:Yes 工作電源電壓:1.8 V to 3.6 V 工作溫度范圍:- 40 C to + 105 C 封裝 / 箱體:QFN-20 安裝風(fēng)格:SMD/SMT
Z86E4412FSC 功能描述:8位微控制器 -MCU Z8 16K OTP 12MHz RoHS:否 制造商:Silicon Labs 核心:8051 處理器系列:C8051F39x 數(shù)據(jù)總線寬度:8 bit 最大時(shí)鐘頻率:50 MHz 程序存儲(chǔ)器大小:16 KB 數(shù)據(jù) RAM 大小:1 KB 片上 ADC:Yes 工作電源電壓:1.8 V to 3.6 V 工作溫度范圍:- 40 C to + 105 C 封裝 / 箱體:QFN-20 安裝風(fēng)格:SMD/SMT
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