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Renesas Electronics Components Datasheet

954226 Datasheet

Programmable Timing Controller

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DATASHEET
Programmable Timing Control HubTM for Mobile P4TM
Systems
954226
Recommended Application:
CK410M Compatible Main Clock
Key Specifications:
• CPU outputs cycle-cycle jitter < 85ps
• PCI Express outputs cycle-cycle jitter < 125ps
Output Features:
• 2 - 0.7V current-mode differential CPU pairs
• 4 - 0.7V current-mode differential PCI Express* pairs
• 1 - 0.7V current-mode differential CPU/PCI Express
selectable pair
• 1 - 0.7V current-mode differential SATA pair
• 1 - 0.7V current-mode differential LCDCLK/PCI Express
selectable pair
• 4 - PCI (33MHz)
• 2 - PCICLK_F, (33MHz) free-running
• 1 - USB, 48MHz
• 1 - DOT, 96MHz, 0.7V current differential pair
• 2 - REF, 14.318MHz
• SATA outputs cycle-cycle jitter < 125ps
• PCI outputs cycle-cycle jitter < 500ps
• +/- 300ppm frequency accuracy on CPU, PCI Express
and SATA clocks
• +/- 100ppm frequency accuracy on USB clocks
Features/Benefits:
• Supports tight ppm accuracy clocks for Serial-ATA and
PCI Express
• Supports programmable spread percentage and
frequency
• Uses external 14.318MHz crystal, external crystal load
caps are required for frequency tuning
• Supports undriven differential CPU, PCI Express pair
in PD for power management.
• PEREQ# pins to support PCI Express and SATA power
management.
MLF Pin Configuration
TSSOP Pin Configuration
56 55 54 53 52 51 50 49 48 47 46 45 44 43
VDDPCI 1
ITP_EN/PCICLK_F0 2
**SELPCIEX_LCDCLK#/PCICLK_F1 3
42 VDDREF
41 SDATA
40 SCLK
Vtt_PwrGd#/PD 4
39 GND
VDD48 5
38 CPUCLKT0
FSLA/USB_48MHz 6
37 CPUCLKC0
GND 7
DOTT_96MHz 8
ICS 954226AKLF
36 VDDCPU
35 CPUCLKT1
DOTC_96MHz 9
34 CPUCLKC1
FSLB/TEST_MODE 10
33 IREF
LCDCLK_SS/PCIEXT0 11
32 GNDA
LCDCLK_SS/PCIEXC0 12
31 VDDA
PCIEXT1 13
30 CPUCLKT2_ITP/PCIEXT6
PCIEXC1 14
29 CPUCLKC2_ITP/PCIEXC6
15 16 17 18 19 20 21 22 23 24 25 26 27 28
56-MLF
* Internal Pull-Up Resistor
** Internal Pull-Down Resistor
VDDPCI 1
GND 2
PCICLK3 3
PCICLK4 4
PCICLK5 5
56 PCICLK2/REQ_SEL**
55 PCI/SRC_STOP#
54 CPU_STOP#
53 REF1/FSLC/TEST_SEL
52 REF0
GND 6
VDDPCI 7
ITP_EN/PCICLK_F0 8
**SELPCIEX_LCDCLK#/PCICLK_F1 9
Vtt_PwrGd#/PD 10
VDD48 11
FSLA/USB_48MHz 12
GND 13
DOTT_96MHz 14
DOTC_96MHz 15
FSLB/TEST_MODE 16
LCDCLK_SS/PCIEX0T 17
LCDCLK_SS/PCIEX0C 18
PCIEXT1 19
PCIEXC1 20
VDDPCIEX 21
PCIEXT2 22
PCIEXC2 23
PCIEXT3 24
PCIEXC3 25
SATACLKT 26
SATACLKC 27
VDDPCIEX 28
51 GND
50 X1
49 X2
48 VDDREF
47 SDATA
46 SCLK
45 GND
44 CPUCLKT0
43 CPUCLKC0
42 VDDCPU
41 CPUCLKT1
40 CPUCLKC1
39 IREF
38 GNDA
37 VDDA
36 CPUCLKT2_ITP/PCIEXT6
35 CPUCLKC2_ITP/PCIEXC6
34 VDDPCIEX
33 PEREQ1#*/PCIEXT5
32 PEREQ2#*/PCIEXC5
31 PCIEXT4
30 PCIEXC4
29 GND
56-TSSOP
* Internal Pull-Up Resistor
** Internal Pull-Down Resistor
Table 1: Frequency Selection Table
FSLC B6b2 FSLB B6b1 FSLA B6b0
CPU
MHz
0 0 0 266.66
PCIEX
MHz
100.00
PCI REF
MHz MHz
33.33 14.318
USB
MHz
48.00
0 0 1 133.33 100.00 33.33 14.318 48.00
0 1 0 200.00 100.00 33.33 14.318 48.00
0 1 1 166.66 100.00 33.33 14.318 48.00
1 0 0 333.33 100.00 33.33 14.318 48.00
1 0 1 100.00 100.00 33.33 14.318 48.00
1 1 0 400.00 100.00 33.33 14.318 48.00
1 1 1 200.00 100.00 33.33 14.318 48.00
IDT® Programmable Timing Control HubTM for Mobile P4TM Systems
DOT
MHz
96.00
96.00
96.00
96.00
96.00
96.00
96.00
96.00
Spread %
0.5% Down
0.5% Down
0.5% Down
0.5% Down
0.5% Down
0.5% Down
0.5% Down
0.5% Down
0930A—04/13/10
1


Renesas Electronics Components Datasheet

954226 Datasheet

Programmable Timing Controller

No Preview Available !

954226
Programmable Timing Control HubTM for Mobile P4TM Systems
TSSOP Pin Description
PIN #
1 VDDPCI
2 GND
3 PCICLK3
4 PCICLK4
5 PCICLK5
6 GND
7 VDDPCI
PIN NAME
8 ITP_EN/PCICLK_F0
9 **SELPCIEX_LCDCLK#/PCICLK_F1
10 Vtt_PwrGd#/PD
11 VDD48
12 FSLA/USB_48MHz
13 GND
14 DOTT_96MHz
15 DOTC_96MHz
16 FSLB/TEST_MODE
17 LCDCLK_SS/PCIEX0T
18 LCDCLK_SS/PCIEX0C
19 PCIEXT1
20 PCIEXC1
21 VDDPCIEX
22 PCIEXT2
23 PCIEXC2
24 PCIEXT3
25 PCIEXC3
26 SATACLKT
27 SATACLKC
28 VDDPCIEX
TYPE
PWR
PWR
OUT
OUT
OUT
PWR
PWR
I/O
I/O
IN
PWR
I/O
PWR
OUT
OUT
IN
OUT
OUT
OUT
OUT
PWR
OUT
OUT
OUT
OUT
OUT
OUT
PWR
DESCRIPTION
Power supply for PCI clocks, nominal 3.3V
Ground pin.
PCI clock output.
PCI clock output.
PCI clock output.
Ground pin.
Power supply for PCI clocks, nominal 3.3V
Free running PCI clock not affected by PCI_STOP# through I2C .
ITP_EN: latched input to select pin functionality
1 = CPU_2_ITP pair
0 = PCIEX_6 pair
Latched select input for LCDCLK/PCIEX output 0 = LCDCLK, 1 = PCIEX /
Free running 3.3V PCI clock output.
Vtt_PwrGd# is an active low input used to determine when latched inputs
are ready to be sampled. PD is an asynchronous active high input pin used
to put the device into a low power state. The internal clocks, PLLs and the
crystal oscillator are stopped.
Power pin for the 48MHz output.3.3V
3.3V tolerant input for CPU frequency selection. Refer to input electrical
characteristics for Vil_FS and Vih_FS values. / Fixed 48MHz USB clock
output. 3.3V.
Ground pin.
True clock of differential pair for 96.00MHz DOT clock.
Complement clock of differential pair for 96.00MHz DOT clock.
3.3V tolerant input for CPU frequency selection. Refer to input electrical
characteristics for Vil_FS and Vih_FS values. TEST_MODE is a real time
input to select between Hi-Z and REF/N divider mode while in test mode.
Refer to Test Clarification Table.
True clock of LCDCLK_SS output / True clock of PCI Express differential
pair. Selected by SELPCIEX_LCDCLK#
Complementary clock of LCDCLK_SS output / Complementary clock of PCI
Express differential pair. Selected by SELPCIEX_LCDCLK#
True clock of differential PCI_Express pair.
Complement clock of differential PCI_Express pair.
Power supply for PCI Express clocks, nominal 3.3V
True clock of differential PCI_Express pair.
Complement clock of differential PCI_Express pair.
True clock of differential PCI_Express pair.
Complement clock of differential PCI_Express pair.
True clock of differential SATA pair.
Complement clock of differential SATA pair.
Power supply for PCI Express clocks, nominal 3.3V
IDT® Programmable Timing Control HubTM for Mobile P4TM Systems
2
0930A—04/13/10


Part Number 954226
Description Programmable Timing Controller
Maker Renesas
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