CY2DP814
Document Number: 38-07060 Rev. *J Page 4 of 15
Figure 2. LVTTL/LVCMOS
Figure 3. LVDS/LVPECL
1
InConfig
LVCMOS / LVTTL
LVTTL/LVCMOS
INPUT A
INPUT B
GND
InConfig
LVPECL &
LVDS
LVDS/LVPECL0
EN1 EN2 Function Table
Enable Logic Input Outputs
EN1 EN2 IN+ IN– QnA QnB
H H H L H L
H L H L H L
L L H L H L
L H X X Z Z
Input Receiver Configuration
For Differential or LVTTL/LVCMOS
CONFIG Pin 2 Binary Value Input Receiver Family Input Receiver Type
1 LVTTL in LVCMOS Single ended, non-inverting, inverting, void of bias resistors.
0
LVDS Low voltage differential signaling
LVPECL Low voltage pseudo (positive) emitter coupled logic
CY2DP814
Document Number: 38-07060 Rev. *J Page 5 of 15
Function Control of the TTL Input Logic
Used to Accept or Invert the Input Signal
LVTTL/LVCMOS INPUT LOGIC
Input Condition Input Logic Output Logic Q pins
Ground IN– Pin 7
IN+ Pin 6 Input True
V
CC
IN– Pin 7
IN+ Pin 6 Input Invert
Ground IN+ Pin 6
IN– Pin 7 Input Invert
V
CC
IN+ Pin 6
IN– Pin 7 Input True
Power Supply Characteristics
Parameter Description Test Conditions Min Typ Max Unit
I
CCD
Dynamic power supply current V
DD
= Max
Input toggling 50% duty cycle,
outputs loaded
–1.52.0
mA/
MHz
I
C
Total power supply current V
DD
= Max
input toggling 50% duty cycle,
outputs loaded, fL= 100 MHz
–90100mA
CY2DP814
Document Number: 38-07060 Rev. *J Page 6 of 15
Figure 4. Differential Receiver to Driver Propagation Delay and Driver Transition Time
[1, 2, 3, 4, 5]
Figure 5. Test Circuit and Voltage Definitions for the Driver Common-mode Output Voltage
[1, 2, 3, 5, 6]
80%
20%
0V Differential
V0Y -
V0Z
t
R
t
F
1.4 V
1.0 V
1.4 V
1.0 V
0V Differential
0V Differential
1.2 V CM
1.2 V CM
V1A
V1B
V0Y
V0Z
T PLH
T PHL
En1
En2
TPA
TPC
TPB
50
50
GND
150
150
Standard Termination
Pulse
Generator
A
B
10pF
VDD-2V
1.4V
1.0V
V I(A)
V I(B)
Voc (ss)V DD
Voc (pp)
VODVOC
TPA
TPC
TPB
50
50
GND
150
150
Standard Termination
Pulse
Generator
A
B
En1
En2
Notes
1. RL = 50 ohm ± 1%; Zline = 50 ohm 6 = Ó.
2. CL includes instrumentation and fixture capacitance within 6 mm of the UT.
3. TPA and B are used for prop delay and rise/fall measurements. TPC is used for VOC measurements only and otherwise connected to V
DD
– 2.
4. When measuring Tr/Tf, tpd, V
OD
point TPC is held at V
DD
– 2.0 V.
5. LVCMOS/LVTTL single-ended input value. Ground either input: when on the B side, non-inversion takes place. If A side is grounded, the signal becomes the
complement of the input on B side. See Function Control of the TTL Input Logic on page 5.
6. V
OC
measurement requires equipment with a 3-dB bandwidth of at least 300 MHz.

CY2DP814ZXIT

Mfr. #:
Manufacturer:
Cypress Semiconductor
Description:
IC CLK BUFFER 1:4 450MHZ 16TSSOP
Lifecycle:
New from this manufacturer.
Delivery:
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