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參數(shù)資料
| 型號： | SST89C58RC-40-I-TQJE |
| 廠商： | Microchip Technology |
| 文件頁數(shù)： | 67/88頁 |
| 文件大?。?/td> | 0K |
| 描述： | IC MCU 8BIT FLASH 40TQFP |
| 標準包裝： | 160 |
| 系列： | FlashFlex® |
| 核心處理器： | 8051 |
| 芯體尺寸： | 8-位 |
| 速度： | 40MHz |
| 連通性： | EBI/EMI，I²C，SMBus，UART/USART |
| 外圍設備： | 欠壓檢測/復位，POR，WDT |
| 輸入/輸出數(shù)： | 32 |
| 程序存儲器容量： | 32KB（32K x 8） |
| 程序存儲器類型： | 閃存 |
| EEPROM 大?。?/td> | 2K x 8 |
| RAM 容量： | 1K x 8 |
| 電壓 - 電源 (Vcc/Vdd)： | 2.7 V ~ 5.5 V |
| 振蕩器型： | 外部 |
| 工作溫度： | -40°C ~ 85°C |
| 封裝/外殼： | 44-TQFP |
| 包裝： | 托盤 |
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2011 Silicon Storage Technology, Inc.
DS25100A
12/11
7
FlashFlex MCU
SST89C58RC
Data Sheet
A Microchip Technology Company
Pin Descriptions
Table 1: Pin Descriptions (1 of 2)
Symbol
Type1
Name and Functions
P0[7:0]
I/O
Port 0: Port 0 is an 8-bit open drain bi-directional I/O port. As an output port each pin
can sink several LS TTL inputs. Port 0 pins that have ‘1’s written to them float, and in
this state can be used as high-impedance inputs. Port 0 is also the multiplexed low-
order address and data bus during accesses to external code and data memory. In
this application, it uses strong internal pull-ups when transitioning to ‘1’s. External pull-
ups are required as a general purpose I/O port.
P1[7:0]
I/O
with inter-
nal
pull-up
Port 1: Port 1 is an 8-bit bi-directional I/O port with internal pull-ups. The Port 1 output
buffers can drive LS TTL inputs. Port 1 pins are pulled high by the internal pull-ups
when ‘1’s are written to them and can be used as inputs in this state. As inputs, Port 1
pins that are externally pulled low will source current because of the internal pull-ups.
P1[0]
I/O
T2: External count input to Timer/Counter 2 or Clock-out from Timer/Counter 2
P1[1]
I
T2EX: Timer/Counter 2 capture/reload trigger and direction control
P1[2]
I/O
GPIO
P1[3]
I/O
GPIO
P1[4]
I/O
SCL1: SMBus1 serial clock input / output
P1[5]
I/O
SDA1: SMBus1 serial data input / output
P1[6]
I/O
SDA0: SMBus0 serial data input / output
P1[7]
I/O
SCL0: SMBus1 serial clock input / output
P2[7:0]
I/O
with inter-
nal
pull-up
Port 2: Port 2 is an 8-bit bi-directional I/O port with internal pull-ups. Port 2 pins are
pulled high by the internal pull-ups when ‘1’s are written to them and can be used as
inputs in this state. As inputs, Port 2 pins that are externally pulled low will source cur-
rent because of the internal pull-ups. Port 2 sends the high-order address byte during
accesses to external Data Memory that use 16-bit address (MOVX@DPTR). In this
application, it uses strong internal pull-ups when transitioning to VOH.
P3[7:0]
I/O
with inter-
nal
pull-up
Port 3: Port 3 is an 8-bit bi-directional I/O port with internal pull-ups. The Port 3 output
buffers can drive LS TTL inputs. Port 3 pins are pulled high by the internal pull-ups when
‘1’s are written to them and can be used as inputs in this state. As inputs, Port 3 pins that
are externally pulled low will source current because of the internal pull-ups.
P3[0]
I
RXD: Universal Asynchronous Receiver/Transmitter (UART) - Receive input
P3[1]
O
TXD: UART - Transmit output
P3[2]
I
INT0#: External Interrupt 0 Input
P3[3]
I
INT1#: External Interrupt 1 Input
P3[4]
I
T0: External count input to Timer/Counter 0
P3[5]
I
T1: External count input to Timer/Counter 1
P3[6]
O
WR#: External Data Memory Write strobe
P3[7]
O
RD#: External Data Memory Read strobe
PSEN#
I/O
Program Store Enable: PSEN# is the Read strobe to external program. When the
device is executing from internal program memory, PSEN# is inactive (VOH).
RST
I
Reset: While the oscillator is running, a “high” logic state on this pin for two machine
cycles will reset the device.
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