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TDA8031 データシート(PDF) 8 Page - NXP Semiconductors

部品番号 TDA8031
部品情報  USB smart card reader (OTP or ROM)
Download  57 Pages
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メーカー  PHILIPS [NXP Semiconductors]
ホームページ  http://www.nxp.com
Logo PHILIPS - NXP Semiconductors

TDA8031 データシート(HTML) 8 Page - NXP Semiconductors

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2003 Jul 04
8
Philips Semiconductors
Product specification
USB smart card reader (OTP or ROM)
TDA8030; TDA8031
P34
36
8xC51 general purpose I/O port (USB_SUSPEND in TDA8030)
P35
37
8xC51 general purpose I/O port (USB_WAKEUP_N in TDA8031)
P36/WR
38
external data memory write strobe
P37/RD
39
external data memory read strobe
XTAL2
40
12 MHz crystal output; leave open-circuit if an external clock is used
XTAL1
41
external 12 MHz crystal connection or input for an external clock signal
VDDD
42
3.3 V regulated digital supply voltage output (decouple with 1
µF ceramic capacitor)
DGND
43
Digital ground
P20/A8
44
8xC51 general purpose I/O port/address 8 (available for the application)
P21/A9
45
8xC51 general purpose I/O port/address 9 (available for the application)
P22/A10
46
8xC51 general purpose I/O port/address 10 (available for the application)
P23/A11
47
8xC51 general purpose I/O port/address 11 (available for the application)
P24/A12
48
8xC51 general purpose I/O port/address 12 (available for the application)
P25/A13
49
8xC51 general purpose I/O port/address 13 (USB_MP_C)
P26/A14
50
8xC51 general purpose I/O port/address 14 (USB_MP_SEL)
P27/A15
51
8xC51 general purpose I/O port/address 15 (ISO_UART_CS)
PSEN
52
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
53
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
54
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
55
8xC51 general purpose I/O port/address/data 7
P06/AD6
56
8xC51 general purpose I/O port/address/data 6
P05/AD5
57
8xC51 general purpose I/O port/address/data 5
P04/AD4
58
8xC51 general purpose I/O port/address/data 4
P03/AD3
59
8xC51 general purpose I/O port/address/data 3
P02/AD2
60
8xC51 general purpose I/O port/address/data 2
P01/AD1
61
8xC51 general purpose I/O port/address/data 1
P00/AD0
62
8xC51 general purpose I/O port/address/data 0
P10
63
8xC51 general purpose I/O port (USB_INT_MASK)
P11
64
8xC51 general purpose I/O port (USB_SOFTCONNECT_INT)
SYMBOL
PIN
DESCRIPTION


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