PIC16F628AT-E/SS Microchip Technology, PIC16F628AT-E/SS Datasheet - Page 11

• Manufacturer Part Number: PIC16F628AT-E/SS
• Description: IC,MICROCONTROLLER,8-BIT,PIC CPU,CMOS,SSOP,20PIN,PLASTIC
• Manufacturer: Microchip Technology
• Series: PIC® 16Fr

Specifications of PIC16F628AT-E/SS

• Rohs Compliant: YES
• Core Processor: PIC
• Core Size: 8-Bit
• Speed: 20MHz
• Connectivity: UART/USART
• Peripherals: Brown-out Detect/Reset, POR, PWM, WDT
• Number Of I /o: 16
• Program Memory Size: 3.5KB (2K x 14)
• Program Memory Type: FLASH
• Eeprom Size: 128 x 8
• Ram Size: 224 x 8
• Voltage - Supply (vcc/vdd): 3 V ~ 5.5 V
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 125°C
• Package / Case: 20-SSOP
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• For Use With: I3DBF648 - BOARD DAUGHTER ICEPIC3AC162053 - HEADER INTERFACE ICD,ICD2 18DIP
• Data Converters: -
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

3.0
These programming commands may be combined in
several ways, in order to accomplish different
programming goals.
FIGURE 3-1:
TABLE 3-1:
© 2007 Microchip Technology Inc.
Bulk Erase Data Memory
Bulk Erase Data Memory
Bulk Erase Program Memory
Bulk Erase Program Memory
Bulk Erase Program Memory
Bulk Erase Program Memory
Serial & Parallel Operation
COMMON PROGRAMMING
TASKS
ACTION
(CLOCK)
(DATA)
RB6
RB7
EFFECTS OF ERASING CODE PROTECTED MEMORY
BULK ERASE PROGRAM MEMORY
OFF=1
ON=0
CP
X
X
X
X
X
X
1
Initial State
1
OFF=1
ON=0
CPD
OFF
OFF
OFF
ON
ON
ON
2
0
Config.
Mem.
YES
YES
PC=
NO
NO
X
X
Preliminary
3
0
PIC16F627A/628A/648A
Unaffected
Unaffected
Program
Memory
Erased
Erased
Erased
Erased
4
1
3.1
The program memory can be erased with the Bulk
Erase Program Memory command.
To perform a Bulk Erase of the program memory, the
following sequence must be performed:
1.
2.
3.
If the address is pointing to the configuration memory
(0x2000-0x200F), then both user ID locations and
program memory will be erased.
Note:
Execute a Load Data for Program Memory with
the data word set to all ‘1’s (0x3FFF).
Execute a Bulk Erase Program Memory
command
Wait T
5
Unaffected
Unaffected
0
Data EE
Memory
Erased
Erased
Erased
Erased
Bulk Erase Program Memory
ERA
All Bulk Erase operations must take place
with V
6
0
for the erase cycle to complete.
T
DD
ERA
Unaffected
Unaffected
Result
Config.
Erased
Erased
Erased
Erased
Word
between 4.5-5.5V.
1
Unaffected
Unaffected
Unaffected
Unaffected
2
location
User ID
Erased
Erased
X
DS41196G-page 11
Comment
CPD=ON