参数资料
型号: PIC16LC642-04/SP
厂商: Microchip Technology
文件页数: 31/125页
文件大小: 0K
描述: IC MCU OTP 4KX14 COMP 28DIP
产品培训模块: Asynchronous Stimulus
标准包装: 15
系列: PIC® 16C
核心处理器: PIC
芯体尺寸: 8-位
速度: 4MHz
外围设备: 欠压检测/复位,LED,POR,WDT
输入/输出数: 22
程序存储器容量: 7KB(4K x 14)
程序存储器类型: OTP
RAM 容量: 176 x 8
电压 - 电源 (Vcc/Vdd): 3 V ~ 6 V
振荡器型: 外部
工作温度: 0°C ~ 70°C
封装/外壳: 28-DIP(0.300",7.62mm)
包装: 管件
Micrel, Inc.
KSZ8862-16/32MQL
April 2007
13
M9999-040407-3.0
Pin
Number
Pin Name
Type
Pin Function
Active Low signal to host CPU to indicate an interrupt status bit is set, this pin need
an external 4.7K pull-up resistor.
17
LDEVN
Opd
Local Device Not
Active Low output signal, asserted when AEN is Low and A15-A4 decode to the
KSZ8862M address programmed into the high byte of the base address register.
LDEVN is a combinational decode of the Address and AEN signal.
18
RDN
Ipd
Read Strobe Not
Asynchronous read strobe, active Low.
19
EECS
Opu
EEPROM Chip Select
20
ARDY
Opd
Asynchronous Ready
ARDY may be used when interfacing asynchronous buses to extend bus access
cycles. It is asynchronous to the host CPU or bus clock. This pin needs an external
4.7K pull-up resistor.
21
CYCLEN
Ipd
Cycle Not
For VLBus-like mode cycle signal; this pin follows the addressing cycle to signal the
command cycle.
For burst mode (32-bit interface only), this pin stays High for read cycles and Low for
write cycles.
22
P2LED3
Opd
Port 2 LED indicator
See the description in pins 6, 7, and 8.
23
DGND
Gnd
Digital IO ground
24
VDDCO
P
1.2V digital core voltage output (internal 1.2V LDO power supply output), this 1.2V
output pin provides power to VDDC, VDDA and VDDAP pins.
Note: Internally generated power voltage. Do not connect an external power supply
to this pin. This pin is used for connecting external filter (Ferrite bead and capacitors).
25
VLBUSN
Ipd
VLBus-like Mode
Pull-down or float: Bus interface is configured for synchronous mode.
Pull-up: Bus interface is configured for 8-bit or 16-bit asynchronous mode or EISA-
like burst mode.
26
EEEN
Ipd
EEPROM Enable
EEPROM is enabled and connected when this pin is pull-up.
EEPROM is disabled when this pin is pull-down or no connect.
27
P1LED3
Opd
Port 1 LED indicator. See the description in pins 3, 4, and 5.
28
EEDO
Opd
EEPROM Data Out
This pin is connected to DI input of the serial EEPROM.
29
EESK
Opd
EEPROM Serial Clock
A 4
s serial output clock to load configuration data from the serial EEPROM.
30
EEDI
Ipd
EEPROM Data In
This pin is connected to DO output of the serial EEPROM when EEEN is pull-up.
This pin can be pull-down for 8-bit bus mode, pull-up for 16-bus mode or don’t care
for 32-bus mode when EEEN is pull-down (without EEPROM).
31
SWR
Ipd
Synchronous Write/Read
Write/Read signal for synchronous bus accesses. Write cycles when high and Read
cycles when low.
32
AEN
Ipu
Address Enable
Address qualifier for the address decoding, active Low.
33
WRN
Ipd
Write Strobe Not
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