TDA8030 datasheet(8/57 Pages) PHILIPS

8 / 57 page

2003 Jul 04

Philips Semiconductors

Product speciﬁcation

USB smart card reader (OTP or ROM)

TDA8030; TDA8031

P34

8xC51 general purpose I/O port (USB_SUSPEND in TDA8030)

P35

8xC51 general purpose I/O port (USB_WAKEUP_N in TDA8031)

P36/WR

external data memory write strobe

P37/RD

external data memory read strobe

XTAL2

12 MHz crystal output; leave open-circuit if an external clock is used

XTAL1

external 12 MHz crystal connection or input for an external clock signal

VDDD

3.3 V regulated digital supply voltage output (decouple with 1

µF ceramic capacitor)

DGND

Digital ground

P20/A8

8xC51 general purpose I/O port/address 8 (available for the application)

P21/A9

8xC51 general purpose I/O port/address 9 (available for the application)

P22/A10

8xC51 general purpose I/O port/address 10 (available for the application)

P23/A11

8xC51 general purpose I/O port/address 11 (available for the application)

P24/A12

8xC51 general purpose I/O port/address 12 (available for the application)

P25/A13

8xC51 general purpose I/O port/address 13 (USB_MP_C)

P26/A14

8xC51 general purpose I/O port/address 14 (USB_MP_SEL)

P27/A15

8xC51 general purpose I/O port/address 15 (ISO_UART_CS)

PSEN

Program Store Enable: read strobe to external program memory when executing code from

the external program memory; PSEN is activated twice each machine cycle except when two

PSEN activations are skipped during each access to external data memory. PSEN is not

activated during fetches from internal program memory.

ALE/PROG

Address Latch Enable/Program Pulse: output pulse for latching the low byte of the address

during an access to external memory. In normal operation ALE is emitted at a constant rate of

1/6 the oscillator frequency and can be used for external timing or clocking. It should be noted

that one ALE pulse is skipped during each access to external data memory. This pin is also

the program pulse input (PROG) during EPROM programming. ALE can be disabled by

setting SFR Auxiliary0. With this bit set ALE will be active only during a MOVX instruction.

EA/VPP

External Access Enable/Programming Supply Voltage: EA must be externally held LOW to

enable the device to fetch code from external program memory locations starting with 0000H.

If EA is held HIGH the device executes from internal program memory unless the program

counter contains an address greater than 3FFFH (16 kbytes boundary). This pin also receives

the 12.75 V programming supply voltage (VPP) during EPROM programming. If security bit 1

is programmed EA will be internally latched on reset.

P07/AD7

8xC51 general purpose I/O port/address/data 7

P06/AD6

8xC51 general purpose I/O port/address/data 6

P05/AD5

8xC51 general purpose I/O port/address/data 5

P04/AD4

8xC51 general purpose I/O port/address/data 4

P03/AD3

8xC51 general purpose I/O port/address/data 3

P02/AD2

8xC51 general purpose I/O port/address/data 2

P01/AD1

8xC51 general purpose I/O port/address/data 1

P00/AD0

8xC51 general purpose I/O port/address/data 0

P10

8xC51 general purpose I/O port (USB_INT_MASK)

P11

8xC51 general purpose I/O port (USB_SOFTCONNECT_INT)

SYMBOL

DESCRIPTION

TDA8030 数据表(PDF) 8 Page - NXP Semiconductors

TDA8030 数据表(HTML) 8 Page - NXP Semiconductors

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