參數(shù)資料
型號: PIC16C765/JW
廠商: Microchip Technology
文件頁數(shù): 135/165頁
文件大?。?/td> 0K
描述: IC MCU EPROM 8KX14 USB 40CDIP
標(biāo)準(zhǔn)包裝: 10
系列: PIC® 16C
核心處理器: PIC
芯體尺寸: 8-位
速度: 24MHz
連通性: SCI,UART/USART,USB
外圍設(shè)備: 欠壓檢測/復(fù)位,POR,PWM,WDT
輸入/輸出數(shù): 33
程序存儲器容量: 14KB(8K x 14)
程序存儲器類型: EPROM,UV
RAM 容量: 256 x 8
電壓 - 電源 (Vcc/Vdd): 4.35 V ~ 5.25 V
數(shù)據(jù)轉(zhuǎn)換器: A/D 8x8b
振蕩器型: 外部
工作溫度: 0°C ~ 70°C
封裝/外殼: 40-CDIP(0.600",15.24mm)窗口
包裝: 管件
配用: 444-1001-ND - DEMO BOARD FOR PICMICRO MCU
2000 Microchip Technology Inc.
Preliminary
DS41124C-page 71
PIC16C745/765
REGISTER 10-13: BUFFER DESCRIPTOR ADDRESS LOW
(BDndAL: 1A2h, 1A6h, 1AAh, 1AEh, 1B2h, 1B6h)
10.6.1
ENDPOINT BUFFERS
Endpoint buffers are located in the Dual Port RAM
area. The starting location of an endpoint buffer is
determined by the Buffer Descriptor.
10.7
Transceiver
An on-chip integrated transceiver is included to drive
the D+/D- physical layer of the USB.
10.7.1
REGULATOR
A 3.3V regulator provides the D+/D- drives with power,
as well as an external pin. This pin is intended to be
used to power a 1.5k
+5% pull-up resistor on the D-
line to signal a low speed device, as specified by the
USB 1.1 Specification. A +20% 200nF capacitor is
required on VUSB for regulator stability.
FIGURE 10-2: EXTERNAL CIRCUITRY
10.7.1.1
VUSB Output
The VUSB provides a 3.3V nominal output. This drive
current is sufficient for a pull-up only.
10.8
USB Software Libraries
Microchip Technology provides a comprehensive set
of Chapter 9 Standard requests functions to aid devel-
opers in implementing their designs. See Microchip
Technology’s website for the latest version of the soft-
ware libraries.
TABLE 10-1:
USB PORT FUNCTIONS
R/W-XR/W-X
BA7
BA6
BA5
BA4
BA3
BA2
BA1
BA0
R = Readable bit
W = Writable bit
U = Unimplemented bit,
read as ‘0’
-n = Value at POR reset
X = Don’t care
bit7
bit0
bit 7-0:
BA<7:0>: Buffer Address
The base address of the buffer controlled by this endpoint. The upper order bit address (BA8) of the
9-bit address is assumed to be 1h. This value must point to a location within the dual port memory
space, Bank 3 (1B8h - 1DFh).
Note 1: This register should always contain a value between B8h-DFh.
PIC16C745/765
Host
Controller/HUB
VUSB
D-
D+
200 nF
APPLICATION
Note: The PIC16C745/765 requires an external resistor and
capacitor to communicate with a host over USB.
1.5K
Name
Function
Input
Type
Output
Type
Description
VUSB
Power
Regulator Output Voltage
D-
USB
USB Differential Bus
D+
USB
USB Differential Bus
Legend:
OD = open drain, ST = Schmitt Trigger
745cov.book Page 71 Wednesday, August 2, 2000 8:24 AM
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PIC16C765T-I/L 功能描述:8位微控制器 -MCU 14KB 256 RAM 33 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 最大時鐘頻率:50 MHz 程序存儲器大小: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
PIC16C765T-I/PT 功能描述:8位微控制器 -MCU 14KB 256 RAM 33 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 最大時鐘頻率:50 MHz 程序存儲器大小: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
PIC16C76T-04/SO 功能描述:8位微控制器 -MCU 14KB 368 RAM 22 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 最大時鐘頻率:50 MHz 程序存儲器大小: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
PIC16C76T-04E/SO 功能描述:8位微控制器 -MCU 14KB 368 RAM 22 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 最大時鐘頻率:50 MHz 程序存儲器大小: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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