4 3 3 SW1 1 2 2 1 R1 47K 3 D DVCC U1 RST VCC3 VCCA VCC18 LTC1728ES5-1.8 20 21 21 13 12 1 DVCC VBATT 1 VBATT C4A PD1(TXD) (MISO)PD2 20 (SCK)PD4 19 RX2IN DR3IN RX3IN RX5OUT 18 RX4IN DREN 17 DR3OUT RXEN 16 GND 15 (SS)PD5 (2MHz)E PB1 PB0 3 VRL VSS 1 51 B 8 27 22 2 7 28 24 3 6 26 25 4 5 25 5 1 8 31 41 2 7 32 42 3 6 30 34 (IC3)PA0 LTC1348CG 1 4 9 PC0 5 5 4 3 R12 12.4K, 1% DOUT V+ 1 OUT DIV SET GND C16 0.1UF 7 VCCA 8 C9 1UF 6.3V C8 RSTB ASYNC SYNC CLKB RIN VCCB DATA C14 1UF 6.3V C4 C7 C2 J2 AMPHENOL C702-10M008-121-4 C3 C1 C5 C S1 S2 C4 18 C7 17 C2 PRESB 21 GND 33 C12 1UF 6.3V C15 4.7UF 6.3V 0805 C13 0.1UF C8 C4 C7 C2 C3 C3 C1 C1 C5 J3 AMPHENOL C702-10M008-121-4 B C5 S1 S1 S2 S2 2 APPROVALS DRAWN: 1. ALL RESISTORS ARE IN OHMS, 0603. TECHNOLOGY KIM T. CHECKED: TITLE: APPROVED: 1. ALL CAPACITORS ARE IN MICROFAR ADS, 0603. ENGINEER: STEVE M. 2. INSTALL SHUNT ON JP1 PIN 2 AND 3, JP2 PIN 1 A ND 2. DESIGNER: SIZE A DATE: 4 S1 S2 CONTRACT NO. 5 C5 C8 LTC1799CS5 NOTES: UNLESS OTHERWISE SPECIFIED A C10 0.1UF I/OB 20 19 LD 29 DVCC VBATT 2.7V TO 5.5V PRESA 2 SCLK RN2 10 U5 DVCC DIN CLKA GND PD0(RXD) (MOSI)PD3 23 C1 4 I/OA 5 RSTA 6 24 RN1 10 C3 3 GND DR1OUT RX2OUT 22 23 2 XIRQ 18 IRQ 19 52 VRH VDD 2 23 RX5IN 26 2 DR2IN C2 10 14 RX1OUT C1- C7 C8A U4 LTC1955EUH NC//NO 13 C1 4.7UF 6.3V 9 . 5 FAULT CPO 12 24 22 11 FAULT C 10 . 4 . 9 25 C1+ RX3OUT E3 C4 U3 MC68HC711E9N DR1IN DR2OUT RX4OUT 17 GND D VBATT C8 LED1 LN1261CAL FAULT RST C11 0.1UF VCC RX1IN R3 240K 15 9 E2 EXT. VBATT C4 0.1UF C- 8 VBATT= DVCC DVCC 3V TO 5.5V 0805 14 7 R9 1K 11 6 C3- 26 R8 47K XTAL R11 0 5 C2- 27 EXTAL RD . 2 7 . TD . 3 . 8 R10 0 4 C3+ R7 47K 8 . 1 . 6 0.1UF C7 C2+ 28 7 J1 3 V- R6 100 MODA C C6 0.1UF V+ JP2 PRGM MODB 2 C8 0.1UF C2 0.1UF R5 47K 1 1 4 R2 180K C3 0.1UF C5 0.1UF JP1 5V VBATT 1 3 GND DVCC U2 E1 5 2 E4 VPP R4 47K 1 DVCC RESET 4 2 UNDERV 5 3 2 1630 McCarthy Blvd. Milpitas, CA 95035 Phone: (408)432-1900 Fax: (408)434-0507 LTC Confidential-For Customer Use OnlyA DUAL SMART CARD INTERFACE DWG NO. DC465A-1 * LT C1955EUH Tuesday, June 11, 2002 SHEET 1 REV A 1 OF 1