Integrated Device Technology
Timing Device Nomenclature
There are several part number types in the IDT high-performance timing nomenclature. IDT has acquired product lines from
both ICS and Freescale and the established part numbers have been maintained. The timing families can be identified by
their marketing part number prefix and are defined in the following charts.
TIMING NOMENCLATURE 1
IDT A V B C D ZZZ R
-XXX PP G I T
I
Packing Designator
T = Shipped in Tape & Reel; Blank = Bulk packing (e.g. tube or tray)
Operating Temperature Range
Blank = 0˚C to 70˚C
I = -40˚C to 85˚C
E = -20˚C to +70˚C
R = -20˚C to +85˚C
W1 = AEC-Q100 Grade 1 (-40 to +125˚C)
W2 = AEC-Q100 Grade 2 (-40 to +105˚C)
W3 = AEC-Q100 Grade 3 (-40 to +85˚C)
W4 = AEC-Q100 Grade 4 (0 to +70˚C)
G
PP
-XXX
R
ZZZ
Optional Package Designator
G = RoHS 6/6 packaging; Blank: RoHS 5/6 packaging
Package
Optional Dash Number
Revision (optional)
Specific Part Number
Usually one to four digits in length. A dash-number can modify the function.
Last two digits may optionally indicate number of outputs
Programmable Clocks or Special Process Technology (optional)
E = EPROM
S = SiGe
EE = EEPROM
N = FemtoClock NG
R = Masked ROM
M = Clock IC with integrated MEMS resonator
Output Signaling
0 = LVCMOS
1 = HCSL (DIFF)
2 = HSTL
3 = LVPECL
4 = LVDS
5=
6=
7=
8=
9=
CML/DCM
AMI
Analog or Sinusoidal
SSTL
Mixed or Programmable Outputs
D
C
B
Product Function
1 = VCXO
3 = Fan Out Buffer
4 = Synthesizer or Frequency Translator (programmable clocks use the optional D character)
5 = SSCG: 1 input, 1 output devices only
6 = Zero-delay Buffer (with and without frequency translation)
7 = Programmable dividers
8 = Application Specific Products
Lowest Supported Supply Voltage, or Custom Part Number
V = 3.3 V
C = Custom part number
T = 2.5 V
E = Custom part number
P = 1.8 V
S = Custom part number
U = 1.5 V
N = 5x7 parts (new numbering scheme included within)
K = 1.2 V
S = Clone: Competitor part number follows
Product Family
4 = MEMS Products
5 = General Purpose Consumer
6 = Custom Consumer
8 = Networking, Communication
V
A
IDT
The “IDT” prefix
indicates that the device is part of the timing line of products from IDT.
This prefix should not be included as part of the orderable part number.
IDT TIMING DEVICE NOMENCLATURE
1
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Integrated Device Technology
Timing Device Nomenclature
TIMING NOMENCLATURE 2
ICS 8 B C D ZZZ R PP I
-XXX G T
G
-XXX
I
Packing Designator
T = Shipped in Tape & Reel; Blank = Bulk packing (e.g. tube or tray)
Optional Package Designator
G = RoHS 6/6 packaging; Blank: RoHS 5/6 packaging
Optional Dash Number
Operating Temperature Range
I = -40˚C to 85˚C
Blank = 0˚C to 70˚C
There are a series of bipolar timing devices that are Industrial operating temperature
range but do not have “I” in the part number. See datasheet for details.
Other non-standard temperature ranges indicated on the datasheet.
Package
Revision
Devices are initially provided at the “A” revision. Improvements are released using
subsequent letters of the alphabet.
PP
R
ZZZ
Specific Part Number
Usually one to four digits in length. A dash-number suffix can modify the function.
Last two digits may optionally indicate number of outputs.
Special Process Technology (optional)
D = Clock Data Recovery device
S = Device uses SiGe fab process. Absence of “S” indicates that the part is in another process,
usually CMOS or Bipolar.
Output Signalling or Part of the Specific Part Number
0 = LVCMOS
1 = HCSL/DCM (PCI Express)
2 = HSTL
3 = LVPECL
4 = LVDS
5 = CML
8 = SSTL
9 = Selectable
Product Function
1 = VCXO based device
2 = Internal use only
3 = Non PLL Buffer, single-ended outputs
4 = PLL frequency Synthesizer (internal feedback, input is usually a crystal)
5 = Non PLL Buffer, differential outputs
6 = PLL Zero Delay Buffer (no frequency multiplication/division)
7 = a) Non PLL Buffer/Dividers
b) PLL based frequency multiplication/division (external feedback, zero delay type PLLs.
Usually use a reference clock rather than a crystal input.
D
C
B
8
ICS
An “8” in the first digit location indicates that the product is in the Networking/Communications
line of timing products for enterprise-class applications.
The Integrated Circuit Systems (“ICS”) prefix indicates that the device is part of the timing
line of products from IDT. This is a marketing prefix only, and is not contained in the orderable
part number.
IDT TIMING DEVICE NOMENCLATURE
2
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Integrated Device Technology
Timing Device Nomenclature
TIMING NOMENCLATURE 3 – NETWORKING AND COMMUNICATIONS WIDE AREA NETWORK PLL
IDT 8
ZZZZ
V PP
I
I
8
Packing Designator
8 = Shipped in Tape and Reel; Blank = Bulk Packing (e.g. tube or tray)
Operating Temperature Range
C = 0˚C to 70˚C
I or Blank = -40˚C to +85˚C
Package
Lowest Supply Voltage
V = 3.3 V
T = 2.5 V
P = 1.8 V
Specific Part Number
Product Function
8 = Wide Area Network PLL
82 = Wide Area Network PLL, T1/E1
The “IDT” prefix
indicates that the device is part of the timing line of products from IDT.
This prefix should not be included as part of the orderable part number.
PP
V
ZZZZ
8
IDT
TIMING NOMENCLATURE 4 – FEMTOCLOCK NG 5x7 CERAMIC
IDT 8N C M BBB Y R M DDD PP I 8
I
PP
DDD
M
Packing Designator
8 = Shipped in Tape & Reel; Blank = Bulk packing (e.g. tube or tray)
Operating Temperature Range
I = -40˚C to +85˚C; Blank = 0˚C to 70˚C
Package
CD = ceramic 5x7
Note: no LF or G suffix required for RoHS6/6
Pre-set (default) frequency and APR code
(see separate order info table)
Internal XTAL frequency
0=114.285MHz
1=100MHz
2=122.88MHz)
Die revision
(letter)
Option Code
A = 3.3 V and 100 ppm
E = 3.3 V and 50 ppm
K = 3.3 V and 20 ppm
B = 2.5 V and 100 ppm
F = 2.5 V and 50 ppm
L = 2.5 V and 20 ppm
R
Y
BBB
Product Function
001 = XO
V75 / V76 = 6pin VCXO
V01 = VCXO
270 / 271 / 272 / 273 / 85 = 6pin XO
Number of pre-set (default) frequencies
S = Single
Q = Quad
D = Dual
H = 16
Signaling
4 = LVDS
3 = LVPECL
M
C
0 = LVCMOS
8N
IDT
FemtoClock NG 5x7 ceramic-packaged parts
The IDT prefix indicates that the device is part of the timing line of products from IDT.
This prefix should not be included as part of the orderable part number.
Example: IDT 8N3Q001LG-0001CDI8 is a LVPECL FemtoClockNG programmable oscillator, quad output frequency (125, 100, 122.88,
156.25 MHz), 2.5 V, 20 ppm, G-revision, 114.285 MHz XTAL in a RoHS 6/6 ceramic 5x7 package with tape and reel.
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IDT TIMING DEVICE NOMENCLATURE
3
Integrated Device Technology
Timing Device Nomenclature
TIMING NOMENCLATURE 5 – FEMTOCLOCK NG 5x7 10QFN
IDT 8N C P A 10 V R -DDD NR G I 8
I
G
NR
-DDD
R
V
Packing Designator
(optional)
8 = Shipped in Tape and Reel; Blank = Bulk Packing (e.g. tube or tray)
Operating Temperature Range
(optional) I = -40˚C to +85˚C, Blank = 0˚C to 70˚C
RoHS 6/6 package
Package code
(10QFN 5x7)
Frequency, divider and programming code
Die revision
Supply voltage code:
V = 3.3 V P = 1.8 V
T = 2.5 V K = 1.2 V
Identifier for the 10QFN-plastic packaged, programmable part platform
Architectural code
N = integer N PLL feedback and FM XTAL
M = integer N PLL and 3OT XTAL
W = Fractional-N with L>23bits and 3OT XTAL
T = Serial programming interface
F = Fractional N PLL feedback and FM XTAL
U = Fractional-N with L=23 bits and 3OT XTAL
V = VCXO
G = Differential reference and fractional
N PLL feedback
10
A
P
C
8N
IDT
Plastic package.
Immutable identifier for the 10 QFN programmable parts
Signaling
4 = LVDS; 3 = LVPECL; 0 = LVCMOS
FemtoClock NG 5x7 plastic-packaged parts
The IDT prefix indicates that the device is part of the timing line of products from IDT. This prefix
should not be included as part of the orderable part number.
Example: IDT 8N3PN10VA-001NRGI8 is a LVPECL FemtoClockNG programmable clock generator with an internal integer-N feedback PLL, with
the frequency coded by “001”, 3.3 V, A-revision, in a RoHS 6/6 plastic 5x7 package (10QFN), industrial temperature and with tape and reel.
TIMING NOMENCLATURE 6 – MEMS PROGRAMMABLE DEVICES
IDT 4x A FFFFF R C V Y PPP I 8
I
PPP
Y
V
C
R
FFFFF
A
4x
Packing Designator
8 = Shipped in Tape and Reel; Blank = Bulk Packing (e.g. tube or tray)
Operating Temperature Range
I = -40°C to +85°C, Blank = 0˚C to 70˚C
Package code
CUG = 7050; CTG = 5032; CXG = 3225
Option code
(ppm, etc.)
Voltage
Signaling
3 = LVPECL; 4 = LVDS; 0 = LVCMOS
Die revision
Frequency Code
Architectural code and pinout arrangement
MEMS Family Designator
4M = Standard Differential Oscillators
4H = Performance Differential Oscillators
4E = Enhanced Differential Oscillator
4C = Enhanced CMOS Oscillator
IDT
The IDT prefix indicates that the device is part of the timing line of products from IDT.
This prefix should not be included as part of the orderable part number.
IDT TIMING DEVICE NOMENCLATURE
4
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Integrated Device Technology
Timing Device Nomenclature
TIMING NOMENCLATURE 7 – IDT PC CLOCK NOMENCLATURE
ICS
9
XXXX
ZZZ
R
P
LF
LF
P
R
ZZZ
XXXX
9
ICS
T
Packing Designator
(optional)
T = Shipped in Tape and Reel; Blank = Bulk Packing (e.g. tube or tray)
Optional Package Designator
LF = Lead Free, RoHS Compliant
Package Type
Revision Designator
(does not correspond with Data sheet revision number)
Specific Part Number
Series Indicator
Combination of 1 to 4 alphabets or digits that indicate a series of clocks designated
to a specific technology or chipset platform
A ‘9’ in the first digit location indicates that the products is an highly integrated clock devices
specially designed for computing or server applications
The Integrated Circuit Systems (“ICS”) prefix indicates that the device is part of the timing line of
products from IDT. This is a marketing prefix only, and is not contained in the orderable part number
TIMING NOMENCLATURE 8
MPC/MC 88, 9, 100ES ZZZZ
PP R2
PP
Packing Designator
(optional)
R2 = Shipped in Tape and Reel; Blank = Bulk Packing (e.g. tube or tray)
Package Type
The two alpha characters in this position indicates the package type.
See datasheet for package details.
Specific Part Number
Three, four or five digits in length.
Product Function
88 = Freescale “88K” Legacy devices.
9 = LVCMOS PLL based clock or LVCMOS buffer.
100ES = SiGe fab process and is a differential buffer.
The “MPC” or “MC” prefix indicates that the device is part of the timing line of products that
were obtained from Freescale Semiconductor. This prefix must be included as part of the
orderable part number.
ZZZZ
88, 9, 100ES
MPC/MC
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IDT TIMING DEVICE NOMENCLATURE
5
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