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PIC12F1572 数据表(PDF) 27 Page - Microchip Technology

部件名 PIC12F1572
功能描述  HIGH-VOLTAGE ICSP PROGRAMMING
Download  32 Pages
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制造商  MICROCHIP [Microchip Technology]
网页  http://www.microchip.com
标志 MICROCHIP - Microchip Technology

PIC12F1572 数据表(HTML) 27 Page - Microchip Technology

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 2013 Microchip Technology Inc.
DS40001713A-page 27
PIC12(L)F1571/2
8.1
AC Timing Diagrams
FIGURE 8-1:
PROGRAMMING MODE
ENTRY – VDD FIRST
FIGURE 8-2:
PROGRAMMING MODE
ENTRY – VPP FIRST
FIGURE 8-3:
PROGRAMMING MODE
EXIT – VPP LAST
FIGURE 8-4:
PROGRAMMING MODE
EXIT – VDD LAST
TDLY
Data input not driven to next clock input (delay
required between command/data or command/
command)
1.0
s
TERAB
Bulk Erase cycle time
5
ms
TERAR
Row Erase cycle time
2.5
ms
TPINT
Internally timed programming operation time
——
2.5
5ms
Program memory
Configuration Words
TPEXT
Externally timed programming pulse
1.0
2.1
ms
Note 1
TDIS
Time delay from program to compare
(HV discharge time)
300
s
TEXIT
Time delay when exiting Program/Verify mode
1
s
Note 1:
Externally timed writes are not supported for Configuration and Calibration bits.
2:
Bulk-erased devices default to brown-out enabled. VDDMIN is 2.85 volts when performing low-voltage programming on a
bulk-erased device, to ensure that the device is not held in Brown-out Reset.
TABLE 8-1:
AC/DC CHARACTERISTICS TIMING REQUIREMENTS FOR PROGRAM/VERIFY MODE
AC/DC CHARACTERISTICS
Standard Operating Conditions
Production tested at 25°C
Sym.
Characteristics
Min.
Typ.
Max.
Units
Conditions/Comments
VPP
TENTH
VDD
TENTS
ICSPDAT
ICSPCLK
VIHH
VIL
TENTH
ICSPDAT
ICSPCLK
VDD
TENTS
VPP
VIHH
VIL
TEXIT
VPP
VDD
ICSPDAT
ICSPCLK
VIHH
VIL
TEXIT
VPP
VDD
ICSPDAT
ICSPCLK
VIHH
VIL


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