- 您现在的位置：买卖IC网 > PDF目录67722 > IS80C32-24W (INTEGRATED SILICON SOLUTION INC) 8-BIT, 24 MHz, MICROCONTROLLER, PDIP40 PDF资料下载
参数资料
| 型号： | IS80C32-24W |
| 厂商： | INTEGRATED SILICON SOLUTION INC |
| 元件分类： | 微控制器/微处理器 |
| 英文描述： | 8-BIT, 24 MHz, MICROCONTROLLER, PDIP40 |
| 封装： | 0.600 INCH, PLASTIC, DIP-40 |
| 文件页数： | 44/48页 |
| 文件大小： | 379K |
| 代理商： | IS80C32-24W |
第1页第2页第3页第4页第5页第6页第7页第8页第9页第10页第11页第12页第13页第14页第15页第16页第17页第18页第19页第20页第21页第22页第23页第24页第25页第26页第27页第28页第29页第30页第31页第32页第33页第34页第35页第36页第37页第38页第39页第40页第41页第42页第43页当前第44页第45页第46页第47页第48页
IS80C52
IS80C32
Integrated Silicon Solution, Inc. — 1-800-379-4774
5
MC004-1D
11/19/98
ISSI
Table 1. Detailed Pin Description
Symbol
PDIP
PLCC
PQFP
I/O
Name and Function
ALE
30
33
27
I/O
Address Latch Enable: Output pulse for latching the low byte
of the address during an address to the external memory. In
normal operation, ALE is emitted at a constant rate of 1/6 the
oscillator frequency, and can be used for external timing or
clocking. Note that one ALE pulse is skipped during each
access to external data memory.
EA
31
35
29
I
External Access enable:
EA must be externally held low to
enable the device to fetch code from external program memory
locations 0000H to FFFFH. If
EA is held high, the device
executes from internal program memory unless the program
counter contains an address greater than 0FFFH.
P0.0-P0.7
39-32
43-36
37-30
I/O
Port 0: Port 0 is an 8-bit open-drain, bidirectional I/O port. Port
0 pins that have 1s written to them float and can be used as
high-impedance inputs. Port 0 is also the multiplexed low-
order address and data bus during accesses to external
program and data memory. In this application, it uses strong
internal pullups when emitting 1s.
P1.0-P1.7
1-8
2-9
40-44
I/O
Port 1: Port 1 is an 8-bit bidirectional I/O port with internal
1-3
pullups. Port 1 pins that have 1s written to them are pulled high
by the internal pullups and can be used as inputs. As inputs,
Port 1 pins that are externally pulled low will source current
because of the internal pullups. (See DC Characteristics: IIL).
The Port 1 output buffers can sink/source four TTL inputs.
Port 1 also receives the low-order address byte during ROM
verification.
12
40
I
T2(P1.0): Timer/Counter 2 external count input.
23
41
I
T2EX(P1.1): Timer/Counter 2 trigger input.
P2.0-P2.7
21-28
24-31
18-25
I/O
Port 2: Port 2 is an 8-bit bidirectional I/O port with internal
pullups. Port 2 pins that have 1s written to them are pulled high
by the internal pullups and can be used as inputs. As inputs,
Port 2 pins that are externally pulled low will source current
because of the internal pullups. (See DC Characteristics: IIL).
Port 2 emits the high order address byte during fetches from
external program memory and during accesses to external
data memory that used 16-bit addresses (MOVX @ DPTR). In
this application, Port 2 uses strong internal pullups when
emitting 1s. During accesses to external data memory that
use 8-bit addresses (MOVX @ Ri [i = 0, 1]), Port 2 emits the
contents of the P2 Special Function Register.
Port 2 also receives the high-order bits and some control
signals during ROM verification.
相关PDF资料 |
PDF描述 |
|---|---|
| IS80C32-12PLI | 8-BIT, 12 MHz, MICROCONTROLLER, PQCC44 |
| IS80C32-12PL | 8-BIT, 12 MHz, MICROCONTROLLER, PQCC44 |
| IS80C32-40PLI | 8-BIT, 40 MHz, MICROCONTROLLER, PQCC44 |
| IS80C52PL | 8-BIT, MROM, 24 MHz, MICROCONTROLLER, PQCC44 |
| IS80C732-C | 8-BIT, 12 MHz, MICROCONTROLLER, PQCC44 |
相关代理商/技术参数 |
参数描述 |
|---|---|
| IS80C32-24WI | 制造商:ISSI 制造商全称:Integrated Silicon Solution, Inc 功能描述:CMOS SINGLE CHIP LOW VOLTAGE 8-BIT MICROCONTROLLER |
| IS80C32-25 | 制造商:未知厂家 制造商全称:未知厂家 功能描述:8-Bit Microcontroller |
| IS80C32-25R | 制造商:未知厂家 制造商全称:未知厂家 功能描述:8-Bit Microcontroller |
| IS80C32-30 | 制造商:未知厂家 制造商全称:未知厂家 功能描述:8-Bit Microcontroller |
| IS80C32-30R | 制造商:未知厂家 制造商全称:未知厂家 功能描述:8-Bit Microcontroller |
发布紧急采购，3分钟左右您将得到回复。