PIC17LC752T-08/L Microchip Technology, PIC17LC752T-08/L Datasheet - Page 43
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PIC17LC752T-08/L
Manufacturer Part Number
PIC17LC752T-08/L
Description
IC MCU OTP 8KX16 A/D 68PLCC
Manufacturer
Microchip Technology
Series
PIC® 17Cr
Specifications of PIC17LC752T-08/L
Core Processor
PIC
Core Size
8-Bit
Speed
8MHz
Connectivity
I²C, SPI, UART/USART
Peripherals
Brown-out Detect/Reset, POR, PWM, WDT
Number Of I /o
50
Program Memory Size
16KB (8K x 16)
Program Memory Type
OTP
Ram Size
678 x 8
Voltage - Supply (vcc/vdd)
3 V ~ 5.5 V
Data Converters
A/D 12x10b
Oscillator Type
External
Operating Temperature
0°C ~ 70°C
Package / Case
68-PLCC
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Eeprom Size
-
Available stocks
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Part Number
Manufacturer
Quantity
Price
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Part Number:
PIC17LC752T-08/L
Manufacturer:
Microchip Technology
Quantity:
10 000
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7.0
There are two memory blocks in the PIC17C7XX; pro-
gram memory and data memory. Each block has its
own bus, so that access to each block can occur during
the same oscillator cycle.
The data memory can further be broken down into
General Purpose RAM and the Special Function Reg-
isters (SFRs). The operation of the SFRs that control
the “core” are described here. The SFRs used to con-
trol the peripheral modules are described in the section
discussing each individual peripheral module.
7.1
PIC17C7XX devices have a 16-bit program counter
capable of addressing a 64K x 16 program memory
space. The RESET vector is at 0000h and the interrupt
vectors are at 0008h, 0010h, 0018h, and 0020h
(Figure 7-1).
7.1.1
The PIC17C7XX can operate in one of four possible
program memory configurations. The configuration is
selected by configuration bits. The possible modes are:
• Microprocessor
• Microcontroller
• Extended Microcontroller
• Protected Microcontroller
The Microcontroller and Protected Microcontroller
modes only allow internal execution. Any access
beyond the program memory reads unknown data. The
Protected Microcontroller mode also enables the code
protection feature.
The Extended Microcontroller mode accesses both
the internal program memory, as well as external pro-
gram memory. Execution automatically switches
between internal and external memory. The 16-bits of
address allow a program memory range of 64K-words.
The Microprocessor mode only accesses the external
program memory. The on-chip program memory is
ignored. The 16-bits of address allow a program mem-
ory range of 64K-words. Microprocessor mode is the
default mode of an unprogrammed device.
The different modes allow different access to the con-
figuration bits, test memory and boot ROM. Table 7-1
lists which modes can access which areas in memory.
Test Memory and Boot Memory are not required for
normal operation of the device. Care should be taken
to ensure that no unintended branches occur to these
areas.
2000 Microchip Technology Inc.
MEMORY ORGANIZATION
Program Memory Organization
PROGRAM MEMORY OPERATION
FIGURE 7-1:
Note 1: User memory space may be internal, external,
CALL, RETURN
RETFIE, RETLW
or both. The memory configuration depends
on the processor mode.
T0CKI Pin Interrupt Vector
Peripheral Interrupt Vector
INT Pin Interrupt Vector
Timer0 Interrupt Vector
Stack Level 16
RESET Vector
Stack Level 1
Test EPROM
PC<15:0>
Boot ROM
Reserved
Reserved
Reserved
WDTPS0
WDTPS1
PROGRAM MEMORY MAP
AND STACK
BODEN
FOSC0
FOSC1
PIC17C7XX
PM0
PM1
PM2
16
DS30289B-page 43
FDFFh
FE00h
FE01h
FE02h
FE03h
FE04h
FE05h
FE06h
FE07h
FE08h
FE0Dh
FE0Eh
FE0Fh
FE10h
FF5Fh
FF60h
FFFFh
0000h
0008h
0010h
0018h
0020h
0021h
1FFFh
(PIC17C752
3FFFh
(PIC17C756A
PIC17C762)
PIC17C766)
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