SSTUB32865 NXP Semiconductors, SSTUB32865 Datasheet - Page 7

• Manufacturer Part Number: SSTUB32865
• Description: Sstub32865 1.8 V 28-bit 1 2 Registered Buffer With Parity For Ddr2-800 Rdimm Applications
• Manufacturer: NXP Semiconductors

NXP Semiconductors
Table 3.
[1]
SSTUB32865_3
Product data sheet
Symbol
Program inputs
CSGATEEN
SELDR
Clock inputs
CK, CK
Miscellaneous inputs
MCL
MCH
RESET
VREF
VDDL
VDDR
GND
n.c.
If application does not require DCS2 and DCS3, it is allowed to connect H4 and K4 to V
Pin description
Pin
H1
A2
J1, K1
U3, V2, V3
U5, V5
L1
A1, V1
D4, E4, E6, F4, G4, K5, N4,
N5, P5, P6, R5, R6
E7, F8, F9, G8, G9, J8, J9,
L8, L9, N8, N9, P7, P8
D5, D8, D9, E5, E8, E9, F5,
G5, H5, H8, H9, J4, J5, K8,
K9, L4, L5, M4, M5, M8, M9,
P4, P9, R4, R7, R8, R9
A4, A5, B3, B4, B5, D6, D7,
V4
…continued
Rev. 03 — 27 March 2007
Type
1.8 V
LVCMOS
with weak
pull-up
LVCMOS
input
SSTL_18
1.8 V
LVCMOS
with weak
pull-up
0.9 V
nominal
Description
Chip Select Gate Enable. When HIGH, the D0 to D21
inputs will be latched only when at least one Chip Select
input is LOW during the rising edge of the clock. When
LOW, the D0 to D21 inputs will be latched and redriven
on every rising edge of the clock.
Selects output drive strength: ‘HIGH’ for normal drive,
‘LOW’ for high drive. This pin will default HIGH if left
open-circuit (built-in weak pull-up resistor).
Differential master clock input pair to the register. The
register operation is triggered by a rising edge on the
positive clock input (CK).
Must be connected to a logic LOW.
Must be connected to a logic HIGH.
Asynchronous reset input. When LOW, it causes a reset
of the internal latches, thereby forcing the outputs LOW.
RESET also resets the PTYERR signal.
Input reference voltage for the SSTL_18 inputs. Two pins
(internally tied together) are used for increased reliability.
Power supply voltage.
Power supply voltage.
Ground.
Ball present but not connected to die.
1.8 V DDR2-800 registered buffer with parity
DD
.
SSTUB32865
© NXP B.V. 2007. All rights reserved.
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