參數(shù)資料
型號(hào): PIC16F639-E/SO
廠商: Microchip Technology
文件頁數(shù): 4/74頁
文件大?。?/td> 0K
描述: IC MCU FLASH 2KX14 20SOIC
標(biāo)準(zhǔn)包裝: 100
系列: PIC® 16F
核心處理器: PIC
芯體尺寸: 8-位
速度: 20MHz
外圍設(shè)備: 欠壓檢測(cè)/復(fù)位,LVD,POR,WDT
輸入/輸出數(shù): 11
程序存儲(chǔ)器容量: 3.5KB(2K x 14)
程序存儲(chǔ)器類型: 閃存
RAM 容量: 128 x 8
電壓 - 電源 (Vcc/Vdd): 2 V ~ 3.6 V
振蕩器型: 內(nèi)部
工作溫度: -40°C ~ 125°C
封裝/外殼: 20-SOIC(0.295",7.50mm 寬)
包裝: 管件
配用: AC162066-ND - HEADER INTRFC MPLAB ICD2 20PIN
AC164039-ND - MODULE SKT PROMATE II 20DIP/SOIC
Micrel, Inc.
KSZ8841-PMQL
October 2007
12
M9999-100407-1.5
Pin
Number
Pin
Name
Type
Pin Function
during read/write operation.
72
STOPN
I/O
PCI Stop
This signal is asserted low by the target device to request the master device to stop the
current transaction.
73
IDSEL
I/O
PCI Initialization Device Select
This signal is used to select the KSZ8841-PMQL during configuration read and write
transactions. Active high.
74
DEVSELN
I/O
PCI Device Select
This signal is asserted low when it is selected as a target during a bus transaction. As a
bus master, the KSZ8841-PMQL samples this signal to insure that a PCI target
recognizes the destination address for the data transfer.
75
REQN
O
PCI Bus Request
The KSZ8841-PMQL will assert this signal low to request PCI bus master operation.
76
GNTN
I
PCI Bus Grant
This signal is asserted low to indicate to the KSZ8841-PMQL that it has been granted
the PCI bus master operation.
77
PERRN
I/O
PCI Parity Error
The KSZ8841-PMQL as a master or target will assert this signal low to indicate a parity
error on any incoming data. As a bus master, it will monitor this signal on all write
operations.
78
DGND
Gnd
Digital ground
79
VDDIO
P
3.3V digital I/O VDD
80
SERRN
O
PCI System Error
This system error signal is asserted low by the KSZ8841-PMQL. This signal is used to
report address parity errors.
81
NC
No connect
82
NC
No connect
83
NC
No connect
84
NC
No connect
85
CBE3N
I/O
86
CBE2N
I/O
87
CBE1N
I/O
88
CBE0N
I/O
Command and Byte Enable
These signals are multiplexed on the same PCI pins. During the address phase, these
lines define the bus command. During the data phase, these lines are used as Byte
Enables, The Byte enables are valid for the entire data phase and determine which byte
lanes carry meaningful data.
89
PAD31
I/O
PCI Address / Data 31
Address and data are multiplexed on the all of the PAD pins. The PAD pins carry the
physical address during the first clock cycle of a transaction, and carry data during the
subsequent clock cycles.
90
DGND
Gnd
Digital core ground
91
VDDC
P
1.2V digital core VDD
92
VDDIO
P
3.3V digital I/O VDD
93
PAD30
I/O
PCI Address / Data 30
94
PAD29
I/O
PCI Address / Data 29
95
PAD28
I/O
PCI Address / Data 28
96
PAD27
I/O
PCI Address / Data 27
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PIC16F639T-I/SO 功能描述:8位微控制器 -MCU 4kb 128 RAM 12 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(shí)鐘頻率:50 MHz 程序存儲(chǔ)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