BL7448 - SHANGHAI BELLING

BL7448 8K-bit encryption card circuit

BL7448 8K 810 :200233 Tel:86-021-64850700 Fax:86-021-64854424 BL7448 ( CMOS E2PROM ) 1024 (PSC) , IC · 1024 X 8 bit E2PROM · · · 1024 X 1bit · · · 10 · 10 · · ISO7816 (PSC) ( ) VCC 1 RST 2 CLK 3 NC 4 1 5 GND 6 NC 7 I/O 8 NC 1 1 VCC 5V 2 RST 3 CLK 4 NC 5 GND 6 NC 7 I/O / ( ) 8 NC .1. 8 BL7448 8K 00 04 3FD 3FE 3FF EC PSC PSC 00 04 3.

Features

6 =FF 103 / 10 20KHZ 1 0 103 20KHZ 20KHZ .4. 8 BL7448 8K / RST 0 1 RES CLK E/W Internal signal Command Input 0 23 0 1 2 I/O S0 S1 D6 D7 I/O 1/O Processing 99 102 TE TW 5 10 199 202 Command Input RST CLK 0 E/W internal signal 0 td1 23 I/O S0 S1 D6 D7 0 12 6 99 Only write or erase 102 1 RST CLK I/O 9bits 8 1 8 8bit Command Input 9 9 Data Output A8 A9 Starting Address D6 D7 0 1 2 3 4 5 6 7 0 1 2 3 4 5 6 7 random value Starting Address Starting Address + 1 01234567 Starting Address + n 7 .5. 8 BL7448 8K 4 Byte1 Byte2 0 1 0 0 1 1 1 1 253 1 0 1 1 0 0 1 1 25.