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參數(shù)資料
| 型號： | TDA8007B |
| 廠商： | NXP Semiconductors N.V. |
| 英文描述： | IC LOGIC 1G02 SINGLE 2-INPUT POSITIVE-NOR GATE -40+85C SOT-23-5 3000/REEL |
| 中文描述： | 雙IC卡接口的多協(xié)議 |
| 文件頁數(shù)： | 7/36頁 |
| 文件大?。?/td> | 159K |
| 代理商： | TDA8007B |
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2000 Nov 09
7
Philips Semiconductors
Product specification
Double multiprotocol IC card interface
TDA8007B
FUNCTIONAL DESCRIPTION
Throughout this specification, it is assumed that the reader
is aware of ISO 7816 norm terminology.
Interface control
The TDA8007B can be controlled via an 8-bit parallel bus
(bits D0 to D7).
If a microcontroller with a multiplexed address/data bus
(suchasthe80C51)isused,thenD0 to D7maybedirectly
connected to P0 to P7. When CS is LOW, the
demultiplexing of address and data is performed internally
using the ALE signal, a LOW pulse on pin RD allows the
selected register to be read, a LOW pulse on pin WR
allows the selected register to be written to. The
TDA8007B automatically switches to the multiplexed bus
configuration if a rising edge is detected on pin ALE. In this
event, AD0 to AD3 play no role and may be tied to V
DD
or
GND. Using a 80C51 microcontroller, the TDA8007B is
simply controlled with MOVX instructions.
If ALE is tied to V
DD
or GND, then the TDA8007B will be in
the non-multiplexed configuration. In this case, the
address bits are external pins AD0 to AD3, RD is the
read/write control signal, and WR is a data write or read
active LOW enable signal.
In both configurations, the TDA8007B is selected only
when CS is LOW. INT is an active LOW interrupt signal.
In non-multiplexed bus configuration, CS and EN play the
same role.
In read operations (RD/WR is HIGH), the data
corresponding to the chosen address is available on the
bus when both CS and EN are LOW.
In write operations, the data present on the bus is written
when signals RD/WR, CS and EN become LOW.
handbook, full pagewidth
LATCH
MUX
MUX
addresses
FCE679
RD
WR
REC
CS
AD0 to AD3
ALE
WR
RD
D0 to D7
REGISTERS
Fig.3 Multiplexed bus recognition.
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| TDA8007BHL | 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:Double multiprotocol IC card interface |
| TDA8007BHL/C2,118 | 功能描述:輸入/輸出控制器接口集成電路 SMART CARD INTERFACE RoHS:否 制造商:Silicon Labs 產(chǎn)品: 輸入/輸出端數(shù)量: 工作電源電壓: 最大工作溫度:+ 85 C 最小工作溫度:- 40 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:QFN-64 封裝:Tray |
| TDA8007BHL/C3 | 制造商:NXP Semiconductors 功能描述:Cut Tape 制造商:NXP Semiconductors 功能描述:Double Multiprotocol IC Card Interface 48-Pin LQFP |
| TDA8007BHL/C3,118 | 功能描述:輸入/輸出控制器接口集成電路 INTERFACE CARD MP RoHS:否 制造商:Silicon Labs 產(chǎn)品: 輸入/輸出端數(shù)量: 工作電源電壓: 最大工作溫度:+ 85 C 最小工作溫度:- 40 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:QFN-64 封裝:Tray |
| TDA8007BHL/C3118 | 制造商:NXP Semiconductors 功能描述:IC RFID 20MHz LQFP-48 |
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