nb7v52m ON Semiconductor, nb7v52m Datasheet - Page 2

• Manufacturer Part Number: nb7v52m
• Description: 1.8v / 2.5v Differential Data/clock D Flip-flop W/ Reset And Cml Outputs
• Manufacturer: ON Semiconductor

Table 1. Pin Description
*
1. In the differential configuration, when the input termination pins (VTD, VTDb, VTR, VTRb, VTCLK, VTCLKb) are connected to a
2. VCC and VEE pins must be externally connected to a power supply for proper operation.
Pin
10
11
12
13
14
15
16
1
2
3
4
5
6
7
8
9
-
common termination voltage or left open, and if no signal is applied on D/Db,CLK/CLKb,R/Rb inputs, then the device will be susceptible
to self-oscillation. Q/Qb outputs each have internal 50-ohm source termination resistor.
VTCLKb
VTDb
VTCLK
VTD
Name
VTDb
VTRb
CLKb
VCC
VTD
CLK
VEE
VTR
D
Db
Qb
EP
Db
Rb
D
Q
R
Figure 2. Pinout: QFN-16 (Top View)
1
2
3
4
LVPECL, CML,
LVPECL, CML,
LVPECL, CML,
LVPECL, CML,
LVPECL, CML,
LVPECL, CML,
CML Output
CML Output
LVDS Input
LVDS Input
LVDS Input
LVDS Input
LVDS Input
LVDS Input
16
5
I/O
-
-
-
-
-
-
-
-
-
15
6
14
7
Internal 50-Ω Termination Pin for D
Noninverted Differential Data Input. Note 1
Inverted Differential Data Input. Note 1
Internal 50-Ω Termination Pin for Db
Internal 50-Ω Termination Pin for CLK
Noninverted Differential Clock Input. Note 1
Inverted Differential Clock Input. Note 1
Internal 50-Ω Termination Pin for CLKb
Negative Supply Voltage. Note 2.
Inverted Differential Output
Noninverted Differential Output
Positive Supply Voltage. Note 2.
Internal 50-Ω Termination Pin for R
Noninverted Differential Reset Input. Note 1
Inverted Differential Reset Input. Note 1
Internal 50-Ω Termination Pin for Rb
The Exposed Pad (EP) on the QFN-16 package bottom is thermally connected to the die for
improved heat transfer out of package. The exposed pad must be attached to a heat-sinking
conduit. The pad is not electrically connected to the die, but is recommended to be electrically and
thermally connected to VEE on the PC board.
13
8
12
11
10
9
Q
VCC
VEE
Qb
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Exposed Pad
NB7V52M
2
Description
Z = LOW to HIGH Transition
x = Don’t care
Table 1. Truth Table
R
H
L
L
D
H
L
x
CLK
Z
Z
x
Q
H
L
L