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參數(shù)資料
| 型號(hào)： | SAB80C52-20-N |
| 廠(chǎng)商： | SIEMENS A G |
| 元件分類(lèi)： | 微控制器/微處理器 |
| 英文描述： | High-Performance 8-Bit Single Chip Microcontroller |
| 中文描述： | 8-BIT, MROM, 20 MHz, MICROCONTROLLER, PQCC44 |
| 文件頁(yè)數(shù)： | 12/56頁(yè) |
| 文件大?。?/td> | 668K |
| 代理商： | SAB80C52-20-N |
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SAB 80C515/80C535
Semiconductor Group
11
PSEN
49
47
O
The
Program store enable
output is a control signal that enables the
external program memory to the bus
during external fetch operations. It is
activated every six oscillator periods,
except during external data memory
accesses. The signal remains high during
internal program execution.
ALE
50
48
O
The
Address latch enable
output is used for latching the address into
external memory during normal operation.
It is activated every six oscillator periods,
except during an external data memory
access.
EA
51
49
I
External access enable
When held high, the SAB 80C515
executes instructions from the internal
ROM as long as the PC is less than 8192.
When held low, the SAB 80C515 fetches
all instructions from external program
memory. For the SAB 80C535 this pin
must be tied low.
P0.0-P0.7 52-59
52-59
I/O
Port 0
is an 8-bit open-drain bidirectional I/O
port.
Port 0 pins that have 1's written to them
float, and in that state 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
pullup resistors when issuing 1's.
Port 0 also outputs the code bytes during
program verification in the SAB 80C515.
External pullup resistors are required
during program verification.
Pin Definitions and Functions
(cont’d)
Symbol
Pin
P-LCC-68
Pin
P-MQFP-80
Input (I)
Output (O)
Function
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| SAB80C52-20-P | High-Performance 8-Bit Single Chip Microcontroller |
| SAB80C52-P | High-Performance 8-Bit Single Chip Microcontroller |
| SAB80C535-16-N | 8-Bit CMOS Single-Chip Microcontroller |
| SAB80C535-20-N | 8-Bit CMOS Single-Chip Microcontroller |
| SAB80C535-M | 8-Bit CMOS Single-Chip Microcontroller |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| SAB80C52-20-P | 制造商:INFINEON 制造商全稱(chēng):Infineon Technologies AG 功能描述:High-Performance 8-Bit Single Chip Microcontroller |
| SAB80C52-P | 制造商:INFINEON 制造商全稱(chēng):Infineon Technologies AG 功能描述:High-Performance 8-Bit Single Chip Microcontroller |
| SAB80C52-P-T40/85 | 制造商:INFINEON 制造商全稱(chēng):Infineon Technologies AG 功能描述:High-Performance 8-Bit Single Chip Microcontroller |
| SAB80C535 | 制造商:INFINEON 制造商全稱(chēng):Infineon Technologies AG 功能描述:8-Bit CMOS Single-Chip Microcontroller |
| SAB80C535-16-N | 制造商:Infineon Technologies AG 功能描述:MicroController, 8-Bit, 68 Pin, Plastic, PLCC |
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