ICS87972I Datasheet, PDF (16/17 Pages) Integrated Circuit Systems – LOW SKEW, 1-TO-12 LVCMOS CLOCK MULTIPLIER/ZERO DELAY BUFFER

Rev Table
A
1
A
A
T2
T4A
B
T2
B
T4A
C
T6
C
T2
D
T6
T10
C
T10
ICS87972I
LOW SKEW, 1-TO-12
LVCMOS/LVTTL CLOCK MULTIPLIER/ZERO DELAY BUFFER
Page
4
2
12
5
7
11
5
10
7
8
11
1
5
8
11
15
15
17
REVISION HISTORY SHEET
Description of Change
Pin Description Table - added pins 20 and 21.
Block Diagram - added missing dividers to the Data Generator.
Revised Package Outline diagram.
Pin Characteristics - changed the C_PD limit from 25pF typical to 18pf max.
Power Supply Table - changed the I limit from 215mA max. to 250mA max.
DD
Application Information:
Added section, "Power Supply Filtering Techniques".
Pin Characteristics - changed C_IN from 4pF max. to 4pF typical.
Corrected Freeze Data labeling on Figure 2A.
Power Supply Table - changed minimum V_DDA from 3.135V to 2.935V.
Crystal Table - changed ESR from 80Ω to 50Ω.
Added Schematic Layout.
Features Section - add lead-free bullet.
Pin Characteristics table - added 5Ω min. and 12Ω max to R_OUT.
Crystal Characteristics table - added Drive Level.
Added Recommendations for Unused Input and Output Pins.
Ordering Information table - added lead-free part number, marking and note.
Updated datasheet's header/footer with IDT from ICS.
Removed ""ICS"" prefix from Part/Order Number column.
Added Contact Page.
Date
9/9/02
10/18/02
12/5/02
3/24/03
5/8/03
6/27/03
12/28/04
11/29/05
6/25/10
87972DYI
www.idt.com
16
REV. E JUNE 25, 2010