6
COMMERCIAL TEMPERATURE RANGE
IDT74SSTU32864/A/C/D/G
1:1 AND 1:2 REGISTERED BUFFER WITH 1.8V SSTL I/O
FUNCTION TABLE (EACH FLIP-FLOP)
(1)
Inputs Qx QCSx QODTx, QCKEx
RESET DCS CSR CLK CLK Dx, DODT, DCKE Outputs Output Outputs
HLL ↑↓ LLLL
HLL ↑↓ HHLH
H L L L or H L or H X Q
0
(2)
Q
0
(2)
Q
0
(2)
HLH ↑↓ LLLL
HLH ↑↓ HHLH
H L H L or H L or H X Q
0
(2)
Q
0
(2)
Q
0
(2)
HHL ↑↓ LLHL
HHL ↑↓ HHHH
H H L L or H L or H X Q
0
(2)
Q
0
(2)
Q
0
(2)
HHH ↑↓ LQ
0
(2)
HL
HHH ↑↓ HQ
0
(2)
HH
H H H L or H L or H X Q
0
(2)
Q
0
(2)
Q
0
(2)
L X or Floating X or Floating X or Floating X or Floating X or Floating L L L
NOTES:
1. H = HIGH Voltage Level
L = LOW Voltage Level
X = Don’t Care
↑ = LOW to HIGH
↓ = HIGH to LOW
2. Output level before the indicated steady-state conditions were established.
MODE SELECT
C0 C1 Device Mode
0 0 1:1 25-bit to 25-bit
0 1 1:2 14-bit to 28-bit, Front (Type A)
1 0 Reserved
1 1 1:2 14-bit to 28-bit, Back (Type B)
OUTPUT CONTROL (SSTU32864G)
ZOH ZOL Output Slew Rate
0 0 Standard
0 1 Highest
1 0 Low
1 1 High
