TDA8007BHL/C3,118 查看數據表（PDF） - NXP Semiconductors.

零件编号

产品描述 (功能)

生产厂家

TDA8007BHL/C3,118

Multiprotocol IC card interface

NXP Semiconductors. 

NXP Semiconductors

TDA8007BHL

Multiprotocol IC card interface

If a microcontroller with a multiplexed address and data bus (such as 80C51) is used, then

pins D0 to D7 may be directly connected to port P0 to P7, see Figure 7. Automatic

switching to the multiplexed bus configuration occurs only for TDA8007BHL/C3, if a rising

edge is detected on signal ALE.

In this event, pins AD0 to AD3 play no role and may be tied to VDD or ground.

When signal CS = low, the demulitplexing of address and data is performed internally

using signal ALE, 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, see Figure 8. Using a 80C51

microcontroller, the TDA8007BHL/C3 is simply controlled with MOVX instructions.

AD0 to AD3

CS

D0 to D7

ALE

WR

RD

REC

LATCH

Fig 7. Multiplexed bus recognition

MUX

RD

WR

MUX

addresses

REGISTERS

fce679

ALE

CS

tW(ALE)

D0 to D7

tAVLL

tW(RD)

t(AL-RWL)

ADDRESS

DATA

READ

t(RWH-AH)

RD

t(RL-DV)

WR

Fig 8. Control with multiplexed bus (read and write)

tAVLL

t(AL-RWL)

t(RWH-AH)

ADDRESS

t(DV-WL)

DATA WRITE

tW(WR)

fce680

8.2 Control registers

The TDA8007BHL has two complete analog interfaces which can drive cards 1 and 2.

The data to and from these two cards shares the same ISO UART. The data to and from a

third card (card 3), externally interfaced (with a TDA8020 or TDA8004 for example), may

also share the same ISO UART.

TDA8007BHL

Product data sheet

All information provided in this document is subject to legal disclaimers.

Rev. 9.1 — 18 June 2012

© NXP B.V. 2012. All rights reserved.

10 of 51

Share Link: