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SSTUA32864 Datasheet(PDF) 6 Page - NXP Semiconductors |
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SSTUA32864 Datasheet(HTML) 6 Page - NXP Semiconductors |
6 / 20 page SSTUA32864_2 © NXP B.V. 2007. All rights reserved. Product data sheet Rev. 02 — 9 March 2007 6 of 20 NXP Semiconductors SSTUA32864 1.8 V configurable registered buffer for DDR2-667 RDIMM applications 6.2 Pin description [1] Depends on configuration. See Figure 3, Figure 4, and Figure 5 for ball number. [2] Configurations: Data inputs = D2, D3, D5, D6, D8 to D25 when C0 = 0 and C1 = 0. Data inputs = D2, D3, D5, D6, D8 to D14 when C0 = 0 and C1 = 1. Data inputs = D1 to D6, D8 to D10, D12, D13 when C0 = 1 and C1 = 1. [3] Configurations: Data outputs = Q2, Q3, Q5, Q6, Q8 to Q25 when C0 = 0 and C1 = 0. Data outputs = Q2, Q3, Q5, Q6, Q8 to Q14 when C0 = 0 and C1 = 1. Data outputs = Q1 to Q6, Q8 to Q10, Q12, Q13 when C0 = 1 and C1 = 1. Table 2. Pin description Symbol Pin Type Description GND B3, B4, D3, D4, F3, F4, H3, H4, K3, K4, M3, M4, P3, P4 ground input ground VDD A4, C3, C4, E3, E4, G3, G4, J3, J4, L3, L4, N3, N4, R3, R4, T4 1.8 V nominal power supply voltage VREF A3, T3 0.9 V nominal input reference voltage ZOH J5 input reserved for future use ZOL J6 input reserved for future use CK H1 differential input positive master clock input CK J1 differential input negative master clock input C0, C1 G6, G5 LVCMOS inputs configuration control inputs RESET G2 LVCMOS input Asynchronous reset input (active LOW). Resets registers and disables VREF data and clock differential-input receivers. CSR, DCS J2, H2 SSTL_18 input Chip select inputs (active LOW). Disables data outputs switching when both inputs are HIGH.[2] D1 to D25 [1] SSTL_18 input Data inputs. Clocked in on the crossing of the rising edge of CK and the falling edge of CK. DODT [1] SSTL_18 input The outputs of this register will not be suspended by DCS and CSR control. DCKE [1] SSTL_18 input The outputs of this register will not be suspended by DCS and CSR control. Q1 to Q25, Q1A to Q14A, Q1B to Q14B [1] 1.8 V CMOS The outputs that are suspended by DCS and CSR control[3]. QCS, QCSA, QCSB [1] 1.8 V CMOS Data outputs that will not be suspended by DCS and CSR control. QODT, QODTA, QODTB [1] 1.8 V CMOS Data outputs that will not be suspended by DCS and CSR control. QCKE, QCKEA, QCKEB [1] 1.8 V CMOS Data outputs that will not be suspended by DCS and CSR control. n.c. A2, D2, G1 - Not connected. Ball present but no internal connection to the die. DNU [1] - Do-not-use. Ball internally connected to the die which should be left open-circuit. |
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