cy2sstu32864 SpectraLinear Inc, cy2sstu32864 Datasheet

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cy2sstu32864

Manufacturer Part Number
cy2sstu32864
Description
1.8v, 25-bit 14-bit Jedec-compliant Data Register
Manufacturer
SpectraLinear Inc
Datasheet

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Company
Part Number
Manufacturer
Quantity
Price
Part Number:
cy2sstu32864BFXC
Manufacturer:
CY
Quantity:
37
Rev 1.0, November 25, 2006
2200 Laurelwood Road, Santa Clara, CA 95054
Features
Functional Description
All clock and data inputs are compatible with the JEDEC
standard for SSTL_18. The control inputs are LVCMOS. All
outputs are 1.8V CMOS drivers that have been optimized to
drive the DDR-II DIMM load. The CY2SSTU32864 operates
from a differential clock (CK and CK#). Data are registered at
the crossing of CK going high, and CK# going low.
The C0 input controls the pinout configuration of the 1:2 pinout
from A configuration (when low) to B configuration (when
high). The C1 input controls the pinout configuration from
25-bit 1:1 (when low) to 14-bit 1:2 (when high). C0 = 1 and
C1 = 0 is not allowed and it will default to the C0 = C1 = 0 state.
1.8V, 25-bit (1:1) or 14-bit (1:2) JEDEC-Compliant Data Register
• Operating frequency: DC to 500 MHz
• Supports DDRII SDRAM
• Two operations modes: 25 bit (1:1) and 14 bit (1:2)
• 1.8V operation
• Fully JEDEC-compliant (JESD82-7A)
• 96-ball FBGA
A
B
C
D
E
F
G
H
J
K
L
M
N
P
R
T
DCKE NC
D2
D3
DODT NC
D5
D6
NC
CK
CK#
D8
D9
D10
D11
D12
D13
D14
1:1 Register C0 = 0, C1 = 0
1
1
D15
D16
D17
D18
RST#
DCS#
CSR#
D19
D20
D21
D22
D23
D24
D25
2
2
VREF
GND
VDD
GND
VDD
GND
VDD
GND
VDD
GND
VDD
GND
VDD
GND
VDD
VREF
3
3
VDD
GND
VDD
GND
VDD
GND
VDD
GND
VDD
GND
VDD
GND
VDD
GND
VDD
VDD
4
4
QCKE NC
Q2
Q3
QODT NC
Q5
Q6
C1
QCS# NC
ZOH
Q8
Q9
Q10
Q11
Q12
Q13
Q14
5
5
Q15
Q16
Q17
Q18
C0
ZOL
Q19
Q20
Q21
Q22
Q23
Q24
Q25
6
6
A
B
C
D
E
F
G
H
J
K
L
M
N
P
R
T
Tel:(408) 855-0555
DCKE NC
D2
D3
DODT NC
D5
D6
NC
CK
CK#
D8
D9
D10
D11
D12
D13
D14
Pin Configurations
1:2 Register A C0 = 0, C1 = 1
1
1
NC
NC
NC
NC
RST#
DCS#
CSR#
NC
NC
NC
NC
NC
NC
NC
2
2
VREF
GND
VDD
GND
VDD
GND
VDD
GND
VDD
GND
VDD
GND
VDD
GND
VDD
VREF
The device monitors both DCS# and CSR# inputs and will gate
the Qn outputs from changing states when both DCS# and
CSR# inputs are high. If either DCS# or CSR# input is low, the
Qn outputs will function normally. The RESET input has priority
over the DCS# and CSR# control and will force the outputs
low. If the DCS#-control functionality is not desired, the CSR#
input can be hardwired to ground, in which case the set-up
time requirement for DCS# would be the same as for the other
D data inputs.
The device supports low-power standby operation. When the
reset input (RESET#) is low, the differential input receivers are
disabled, and undriven (floating) data, clock, and reference
voltage (VREF) inputs are allowed. In addition, when RESET#
is low, all registers are reset and all outputs are forced low. The
LVCMOS RESET# and Cn inputs must always be held at a
valid logic high or low level. To ensure defined outputs from the
register before a stable clock has been supplied, RESET#
must be held in the low state during power-up.
In the DDR-II RDIMM application, RESET# is specified to be
completely asynchronous with respect to CK and CK#.
Therefore, no timing relationship can be guaranteed between
the two. When entering reset, the register will be cleared and
the outputs will be driven low quickly, relative to the time to
disable the differential input receivers. However, when coming
out of reset, the register will become active quickly, relative to
the time to enable the differential input receivers.
3
3
VDD
GND
VDD
GND
VDD
GND
VDD
GND
VDD
GND
VDD
GND
VDD
GND
VDD
VDD
4
4
Fax:(408) 855-0550
QCKEA QCKEB
Q2A
Q3A
QODTA QODTB
Q5A
Q6A
C1
QCSA# QCSB#
ZOH
Q8A
Q9A
Q10A
Q11A
Q12A
Q13A
Q14A
5
5
Q2B
Q3B
Q5B
Q6B
C0
ZOL
Q8B
Q9B
Q10B
Q11B
Q12B
Q13B
Q14B
6
6
CY2SSTU32864
A
B
C
D
E
F
G
H
J
K
L
M
N
P
R
T
D1
D2
D3
D4
D5
D6
NC
CK
CK#
D8
D9
D10
DODT NC
D12
D13
DCKE NC
1
1
1:2 Register B C0 = 1, C1 = 1
www.SpectraLinear.com
NC
NC
NC
NC
NC
NC
RST#
DCS#
CSR#
NC
NC
NC
NC
NC
2
2
VREF VDD
GND
VDD
GND
VDD
GND
VDD
GND
VDD
GND
VDD
GND
VDD
GND
VDD
VREF VDD
3
3
GND
VDD
GND
VDD
GND
VDD
GND
VDD
GND
VDD
GND
VDD
GND
VDD
Page 1 of 9
4
4
Q1A
Q2A
Q3A
Q4A
Q5A
Q6A
C1
QCSA# QCSB#
ZOH
Q8A
Q9A
Q10A
QODTA QODTB
Q12A
Q13A
QCKEA QCKEB
5
5
Q1B
Q2B
Q3B
Q4B
Q5B
Q6B
C0
ZOL
Q8B
Q9B
Q10B
Q12B
Q13B
6
6

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cy2sstu32864 Summary of contents

Page 1

... All clock and data inputs are compatible with the JEDEC standard for SSTL_18. The control inputs are LVCMOS. All outputs are 1.8V CMOS drivers that have been optimized to drive the DDR-II DIMM load. The CY2SSTU32864 operates from a differential clock (CK and CK#). Data are registered at the crossing of CK going high, and CK# going low. ...

Page 2

... B5 E5, F5, K5, L5, M5 E5, F5, K5, L5, M5 Data Outputs that are suspended by the DCS# N5 CY2SSTU32864 Description Ground Power Supply Voltage Input Reference Voltage Reserved Reserved Positive Master Clock Negative Master Clock Configuration Control Input Configuration Control Input Asynchronous Reset – resets registers and ...

Page 3

... T6 A2, B2, C2, D2, E2, F2, G1, K2, L2, E2, F2, G1, K2, L2, M2, N2, P2, R2, T2 M2, N2, P2, R2, T2 CY2SSTU32864 Description Data Outputs that are suspended by the DCS# and CSR# control Data Outputs that are suspended by the DCS# and CSR# control Data Outputs that are suspended by the DCS# ...

Page 4

... Floating X or Floating X or Floating Rev 1.0, November 25, 2006 Inputs CK CK# Dn, DODT, DCKE Floating X or Floating CY2SSTU32864 Outputs Qn QCS# QODT, QCKE ...

Page 5

... mA 1. –100 1. – RESET RESET IH(AC 1.9V DD CY2SSTU32864 Min. –0.5 V –0.5 V –65 –0.5 –50 DD –50 DD –50 –100 Min. 0 1.7 0.675 600 0.49*V 0.51 – REF REF 0 –5 – V REF – ...

Page 6

... DCS#, CSRT#, ODT, CKE and data after crossing CK,CK#, CK going high From CK, CK From CK, CK – simultaneous switching RESET# Start to Q Low dv/dt_r (20 to 80%) dv/dt_f (20 to 80%) max, after RESET# is taken high. ACT CY2SSTU32864 Min CK, 28 (typical) IL(AC CK, 18 (typical) IL(AC ...

Page 7

... Figure 1. Test Load for Timing Measurements #1 DUT OUT DUT OUT C = 10pF L RESET VDD/2 Input D t inact Figure 4. Active and Inactive Times t w Input V ICR Figure 5. Pulse Duration CY2SSTU32864 VDD R = 1000 L Test Point R = 1000 C = 30pF L L VDD Test Point C = 10pF L Test Point ...

Page 8

... V Input REF Figure 6. Set-up and Hold Times CK V ICR CK t PLH V TT Figure 7. Propagation Delay RESET# VDD/2 Output Figure 8. Propagation Delay after RESET# CY2SSTU32864 VID VIH V REF VIL V VID ICR t PHL VOH V TT VOL VIH VIL t RPHL VOH V TT ...

Page 9

... Rev 1.0, November 25, 2006 Package Type 96-pin FBGA 96-pin FBGA– Tape and Reel 96 FBGA (5.5 x 13.5 x 1.2 mm) BA96A 6 A CY2SSTU32864 Product Flow Commercial, 0° to 85°C Commercial, 0° to 85°C Ø0. Ø0. Ø0.50±0.05(96X) BOTTOM VIEW ...

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