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參數(shù)資料
| 型號(hào)： | PIC16F84AT-04E/SS |
| 廠商： | Microchip Technology |
| 文件頁數(shù)： | 79/81頁 |
| 文件大小： | 0K |
| 描述： | IC MCU CMOS 4MHZ 1K FLASH 20SSOP |
| 標(biāo)準(zhǔn)包裝： | 1,600 |
| 系列： | PIC® 16F |
| 核心處理器： | PIC |
| 芯體尺寸： | 8-位 |
| 速度： | 4MHz |
| 外圍設(shè)備： | POR，WDT |
| 輸入/輸出數(shù)： | 13 |
| 程序存儲(chǔ)器容量： | 1.75KB（1K x 14） |
| 程序存儲(chǔ)器類型： | 閃存 |
| EEPROM 大?。?/td> | 64 x 8 |
| RAM 容量： | 68 x 8 |
| 電壓 - 電源 (Vcc/Vdd)： | 4 V ~ 5.5 V |
| 振蕩器型： | 外部 |
| 工作溫度： | -40°C ~ 125°C |
| 封裝/外殼： | 20-SSOP（0.209"，5.30mm 寬） |
| 包裝： | 帶卷 (TR) |
| 配用： | XLT20SS1-1-ND - SOCKET TRANSITION 20DIP 20SSOP |
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PIC16F84A
DS35007B-page 78
2001 Microchip Technology Inc.
APPENDIX C:
MIGRATION FROM
BASELINE TO
MID-RANGE DEVICES
This section discusses how to migrate from a baseline
device (i.e., PIC16C5X) to a mid-range device (i.e.,
PIC16CXXX).
The following is the list of feature improvements over
the PIC16C5X microcontroller family:
1.
Instruction word length is increased to 14-bits.
This allows larger page sizes, both in program
memory (2K now as opposed to 512K before)
and the register file (128 bytes now versus
32 bytes before).
2.
A PC latch register (PCLATH) is added to han-
dle program memory paging. PA2, PA1 and PA0
bits are removed from the STATUS register and
placed in the OPTION register.
3.
Data memory paging is redefined slightly. The
STATUS register is modified.
4.
Four new
instructions
have been added:
RETURN
, RETFIE, ADDLW, and SUBLW. Two
instructions, TRIS and OPTION, are being
phased
out,
although
they
are
kept
for
compatibility with PIC16C5X.
5.
OPTION
and
TRIS
registers
are
made
addressable.
6.
Interrupt capability is added. Interrupt vector is
at 0004h.
7.
Stack size is increased to eight-deep.
8.
RESET vector is changed to 0000h.
9.
RESET of all registers is revisited. Five different
RESET (and wake-up) types are recognized.
Registers are reset differently.
10. Wake-up from SLEEP through interrupt is
added.
11. Two separate timers, the Oscillator Start-up
Timer (OST) and Power-up Timer (PWRT), are
included for more reliable power-up. These
timers
are
invoked
selectively
to
avoid
unnecessary delays on power-up and wake-up.
12. PORTB has weak pull-ups and interrupt-on-
change features.
13. T0CKI pin is also a port pin (RA4/T0CKI).
14. FSR is a full 8-bit register.
15. "In system programming" is made possible. The
user can program PIC16CXX devices using only
five pins: VDD, VSS, VPP, RB6 (clock) and RB7
(data in/out).
To convert code written for PIC16C5X to PIC16F84A,
the user should take the following steps:
1.
Remove any program memory page select
operations (PA2, PA1, PA0 bits) for CALL, GOTO.
2.
Revisit any computed jump operations (write to
PC or add to PC, etc.) to make sure page bits
are set properly under the new scheme.
3.
Eliminate any data memory page switching.
Redefine data variables for reallocation.
4.
Verify all writes to STATUS, OPTION, and FSR
registers since these have changed.
5.
Change RESET vector to 0000h.
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| PIC16F84AT-04I/SO | 功能描述:8位微控制器 -MCU 1.75KB 68 RAM 13 I/O 4MHz Ind Temp SOIC18 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(shí)鐘頻率:50 MHz 程序存儲(chǔ)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 |
| PIC16F84AT-04I/SS | 功能描述:8位微控制器 -MCU 1.75KB 68 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(shí)鐘頻率:50 MHz 程序存儲(chǔ)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 |
| PIC16F84AT-20/SO | 功能描述:8位微控制器 -MCU 1.75KB 68 RAM 13 I/O 20MHz SOIC18 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(shí)鐘頻率:50 MHz 程序存儲(chǔ)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 |
| PIC16F84AT-20/SS | 功能描述:8位微控制器 -MCU 1.75KB 68 RAM 13 I/O 20MHz SSOP20 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(shí)鐘頻率:50 MHz 程序存儲(chǔ)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 |
| PIC16F84AT-20E/SO | 功能描述:8位微控制器 -MCU 1.75KB 68 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(shí)鐘頻率:50 MHz 程序存儲(chǔ)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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