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전자부품 데이터시트 검색엔진 |
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전자부품 데이터시트 검색엔진 |
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DS2155 데이터시트(PDF) 35 Page - Dallas Semiconductor |
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DS2155 데이터시트(HTML) 35 Page - Dallas Semiconductor |
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35 / 262 page  DS2156 35 of 262 Table 3-B. Pin Description Sorted by Pin Number (UTOPIA Backplane Enabled) BOLD entries indicate pins that have an alternate function when the TDM bus interface is enabled. PIN LQFP CSBGA SYMBOL TYPE DESCRIPTION 1 A1 UR-SOC O UTOPIA Receive Start of Cell 2 B2 JTMS I IEEE 1149.1 Test Mode Select 3 C3 UR-ENB I UTOPIA Receive Enable 4 B1 JTCLK I IEEE 1149.1 Test Clock Signal 5 D4 JTRST I IEEE 1149.1 Test Reset 6 C2 RCL O Receive Carrier Loss 7 C1 JTDI I IEEE 1149.1 Test Data Input 8 D3 UT-SOC I UTOPIA Transmit Start of Cell 9 D2 UT-ENB I UTOPIA Transmit Enable 10 D1 JTDO O IEEE 1149.1 Test Data Output 11 E3 BTS I Bus Type Select 12 E2 UT-CLAV O UTOPIA Transmit Cell Available 13 E1 8XCLK O Eight Times Clock 14 E4 TSTRST I Test/Reset 15 E5 UOP2 User Output Pin 2 16 F1 RTIP I Receive Analog Tip Input 17 F2 RRING I Receive Analog Ring Input 18 F3 RVDD — Receive Analog Positive Supply 19, 20, 24 F4, G1, J1 RVSS — Receive Analog Signal Ground 21 G2 MCLK I Master Clock Input 22 H1 XTALD O Quartz Crystal Driver 23 G3 UT-ADDR0 I UTOPIA Transmit Address Bus Bit 0 25 H2 INT O Interrupt 26 K1 TUSEL I Backplane Interface Select 27, 28 J2, H3 N.C. — No Connection. Reserved for Factory Test 29 K2 TTIP O Transmit Analog Tip Output 30 G4 TVSS — Transmit Analog Signal Ground 31 J3 TVDD — Transmit Analog Positive Supply 32 K3 TRING O Transmit Analog Ring Output 33 H4 UT-ADDR1 I UTOPIA Transmit Address Bus Bit 1 34 J4 UT-ADDR2 I UTOPIA Transmit Address Bus Bit 2 35 K4 UT-ADDR3 I UTOPIA Transmit Address Bus Bit 3 36 H5 ESIBS0 I/O Extended System Information Bus 0 37 J5 TSYNC I/O Transmit Sync 38 K5 UT-ADDR4 I UTOPIA Transmit Address Bus Bit 4 39 G5 UT-DATA0 I UTOPIA Transmit Data Bus Bit 0 40 F5 UT-DATA1 I UTOPIA Transmit Data Bus Bit 1 41 K6 UT-DATA2 I UTOPIA Transmit Data Bus Bit 2 42 J6 UT-DATA3 I UTOPIA Transmit Data Bus Bit 3 43 H6 UT-DATA4 I UTOPIA Transmit Data Bus Bit 4 44, 61, 81, 83 K7, F8, B8, C7 DVDD — Digital Positive Supply 45, 60, 80, 84 G6, G10, D7, B7 DVSS — Digital Signal Ground 46 J7 TCLK I Transmit Clock 47 K8 UT-DATA5 I UTOPIA Transmit Data Bus Bit 5 48 H7 UT-DATA6 I UTOPIA Transmit Data Bus Bit 6 |
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