參數(shù)資料
型號： PIC16CE623T-30/SO
廠商： Microchip Technology
文件頁數(shù)： 34/100頁
文件大?。?/td> 0K
描述： IC MCU OTP 512X14 EE COMP 18SOIC
標(biāo)準(zhǔn)包裝： 1,100
系列： PIC® 16C
核心處理器： PIC
芯體尺寸： 8-位
速度： 30MHz
外圍設(shè)備： 欠壓檢測/復(fù)位，POR，WDT
輸入/輸出數(shù)： 13
程序存儲器容量： 896B（512 x 14）
程序存儲器類型： OTP
EEPROM 大?。?/td> 128 x 8
RAM 容量： 96 x 8
電壓 - 電源 (Vcc/Vdd)： 3 V ~ 5.5 V
振蕩器型： 外部
工作溫度： 0°C ~ 70°C
封裝/外殼： 18-SOIC（0.295"，7.50mm 寬）
包裝： 帶卷 (TR)
其它名稱： PIC16CE623T30/SO
1999 Microchip Technology Inc.
DS40182C-page 29
PIC16CE62X
6.0
EEPROM PERIPHERAL
OPERATION
The PIC16CE623/624/625 each have 128 bytes of
EEPROM data memory. The EEPROM data memory
supports a bi-directional, 2-wire bus and data transmis-
sion protocol. These two-wires are serial data (SDA)
and serial clock (SCL), and are mapped to bit1 and bit2,
respectively, of the EEINTF register (SFR 90h). In addi-
tion, the power to the EEPROM can be controlled using
bit0 (EEVDD) of the EEINTF register.
For most appli-
cations, all that is required is calls to the following func-
tions:
; Byte_Write: Byte write routine
;
Inputs: EEPROM Address
EEADDR
;
EEPROM Data
EEDATA
;
Outputs:
Return 01 in W if OK, else
;
return 00 in W
;
; Read_Current: Read EEPROM at address
currently held by EE device.
;
Inputs: NONE
;
Outputs:
EEPROM Data
EEDATA
;
Return 01 in W if OK, else
;
return 00 in W
;
; Read_Random: Read EEPROM byte at supplied
; address
;
Inputs: EEPROM Address
EEADDR
;
Outputs:
EEPROM Data
EEDATA
;
Return 01 in W if OK,
;
else return 00 in W
The code for these functions is available on our web
site (www.microchip.com). The code will be accessed
by either including the source code FL62XINC.ASM or
by linking FLASH62X.ASM. FLASH62.IMC provides
external definition to the calling program.
6.0.1
SERIAL DATA
SDA is a bi-directional pin used to transfer addresses
and data into and data out of the memory.
For normal data transfer, SDA is allowed to change only
during SCL low. Changes during SCL high are
reserved for indicating the START and STOP condi-
tions.
6.0.2
SERIAL CLOCK
This SCL input is used to synchronize the data transfer
to and from the memory.
6.0.3
EEINTF REGISTER
The EEINTF register (SFR 90h) controls the access to
the EEPROM. Register 6-1 details the function of each
bit. User code must generate the clock and data sig-
nals.
REGISTER 6-1: EEINTF REGISTER (ADDRESS 90h)
U-0
R/W-1
EESCL
EESDA
EEVDD
R
= Readable bit
W = Writable bit
U
= Unimplemented bit,
read as ‘0’
- n = Value at POR reset
bit7
bit0
bit 7-3:
Unimplemented: Read as ’0’
bit 2:
EESCL: Clock line to the EEPROM
1
= Clock high
0
= Clock low
bit 1:
EESDA: Data line to EEPROM
1
= Data line is high (pin is tri-stated, line is pulled high by a pull-up resistor)
0
= Data line is low
bit 0:
EEVDD: VDD control bit for EEPROM
1
= VDD is turned on to EEPROM
0
= VDD is turned off to EEPROM (all pins are tri-stated and the EEPROM is powered down)
Note:
EESDA, EESCL and EEVDD will read ‘0’ if EEVDD is turned off.
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PIC16CE624-04/SS 功能描述:8位微控制器 -MCU 1.75KB 96 RAM 13 I/O 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 最大時鐘頻率:50 MHz 程序存儲器大小: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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