PIC18F6585-I/PT Microchip Technology, PIC18F6585-I/PT Datasheet - Page 109
![IC PIC MCU FLASH 24KX16 64TQFP](/photos/6/81/68123/c04-066_pf_sml.jpg)
PIC18F6585-I/PT
Manufacturer Part Number
PIC18F6585-I/PT
Description
IC PIC MCU FLASH 24KX16 64TQFP
Manufacturer
Microchip Technology
Series
PIC® 18Fr
Datasheets
1.PIC16F616T-ISL.pdf
(8 pages)
2.PCM18XK1.pdf
(496 pages)
3.PIC18F6585-IPT.pdf
(8 pages)
4.PIC18F6585-IPT.pdf
(38 pages)
5.PIC18F6585-IPT.pdf
(14 pages)
Specifications of PIC18F6585-I/PT
Program Memory Type
FLASH
Program Memory Size
48KB (24K x 16)
Package / Case
64-TFQFP
Core Processor
PIC
Core Size
8-Bit
Speed
40MHz
Connectivity
CAN, I²C, SPI, UART/USART
Peripherals
Brown-out Detect/Reset, LVD, POR, PWM, WDT
Number Of I /o
52
Eeprom Size
1K x 8
Ram Size
3.25K x 8
Voltage - Supply (vcc/vdd)
4.2 V ~ 5.5 V
Data Converters
A/D 12x10b
Oscillator Type
External
Operating Temperature
-40°C ~ 85°C
Processor Series
PIC18F
Core
PIC
Data Bus Width
8 bit
Data Ram Size
3.25 KB
Interface Type
I2C/SPI/AUSART/CAN
Maximum Clock Frequency
40 MHz
Number Of Programmable I/os
53
Number Of Timers
5
Maximum Operating Temperature
+ 85 C
Mounting Style
SMD/SMT
3rd Party Development Tools
52715-96, 52716-328, 52717-734, 52712-325, EWPIC18
Development Tools By Supplier
PG164130, DV164035, DV244005, DV164005, PG164120, ICE2000, ICE4000, DV164136, DM183032
Minimum Operating Temperature
- 40 C
On-chip Adc
12-ch x 10-bit
Package
64TQFP
Device Core
PIC
Family Name
PIC18
Maximum Speed
40 MHz
Operating Supply Voltage
5 V
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
For Use With
XLT64PT5 - SOCKET TRAN ICE 64MQFP/TQFPAC164319 - MODULE SKT MPLAB PM3 64TQFPDV007003 - PROGRAMMER UNIVERSAL PROMATE II
Lead Free Status / Rohs Status
Lead free / RoHS Compliant
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
PIC18F6585-I/PT
Manufacturer:
Microchip Technology
Quantity:
10 000
Part Number:
PIC18F6585-I/PT
Manufacturer:
MICROCHIP/微芯
Quantity:
20 000
- PIC16F616T-ISL PDF datasheet
- PCM18XK1 PDF datasheet #2
- PIC18F6585-IPT PDF datasheet #3
- PIC18F6585-IPT PDF datasheet #4
- PIC18F6585-IPT PDF datasheet #5
- Current page: 109 of 496
- Download datasheet (9Mb)
8.0
8.1
An 8 x 8 hardware multiplier is included in the ALU of
the PIC18F6585/8585/6680/8680 devices. By making
the multiply a hardware operation, it completes in a sin-
gle instruction cycle. This is an unsigned multiply that
gives a 16-bit result. The result is stored in the 16-bit
product register pair (PRODH:PRODL). The multiplier
does not affect any flags in the ALUSTA register.
Making the 8 x 8 multiplier execute in a single cycle
gives the following advantages:
• Higher computational throughput
• Reduces code size requirements for multiply
The performance increase allows the device to be used
in applications previously reserved for Digital Signal
Processors.
Table 8-1 shows a performance comparison between
enhanced devices using the single-cycle hardware
multiply and performing the same function without the
hardware multiply.
TABLE 8-1:
2004 Microchip Technology Inc.
8 x 8 unsigned
8 x 8 signed
16 x 16 unsigned
16 x 16 signed
algorithms
Routine
8 x 8 HARDWARE MULTIPLIER
Introduction
PERFORMANCE COMPARISON
Without hardware multiply
Without hardware multiply
Without hardware multiply
Without hardware multiply
Hardware multiply
Hardware multiply
Hardware multiply
Hardware multiply
Multiply Method
PIC18F6585/8585/6680/8680
Program
Memory
(Words)
13
33
21
24
52
36
1
6
8.2
Example 8-1 shows the sequence to do an 8 x 8
unsigned multiply. Only one instruction is required
when one argument of the multiply is already loaded in
the WREG register.
Example 8-2 shows the sequence to do an 8 x 8 signed
multiply. To account for the sign bits of the arguments,
each argument’s Most Significant bit (MSb) is tested
and the appropriate subtractions are done.
EXAMPLE 8-1:
EXAMPLE 8-2:
MOVF
MULWF
MOVF
MULWF
BTFSC
SUBWF
MOVF
BTFSC
SUBWF
Cycles
(Max)
242
254
69
91
24
36
1
6
Operation
ARG1, W
ARG2
ARG1, W
ARG2
ARG2, SB
PRODH
ARG2, W
ARG1, SB
PRODH
@ 40 MHz
24.2 s
25.4 s
100 ns
600 ns
6.9 s
9.1 s
2.4 s
3.6 s
8 x 8 UNSIGNED
MULTIPLY ROUTINE
8 x 8 SIGNED MULTIPLY
ROUTINE
;
; ARG1 * ARG2 ->
; PRODH:PRODL
;
; ARG1 * ARG2 ->
; PRODH:PRODL
; Test Sign Bit
; PRODH = PRODH
;
;
; Test Sign Bit
; PRODH = PRODH
;
@ 10 MHz
102.6 s
14.4 s
27.6 s
36.4 s
96.8 s
Time
400 ns
2.4 s
9.6 s
DS30491C-page 107
- ARG1
- ARG2
@ 4 MHz
242 s
254 s
69 s
91 s
24 s
36 s
1 s
6 s
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