General Description
The IDT5U49319 is a very low power clock for Freescale
MCU’s. It uses a 1.5V core and Low-Power HCSL
(LP-HCSL) differential outputs for minimal power
consumption. The SATA and SRC outputs are PCIe Gen1/2
compatible.

Features/Benefits
• Various outputs are configurable to run in power down;
supports Wake_On_LAN
• FPGA clock frequency is selectable via SMBus; allows
low-power system standby
• Strapping pin sources SRC outputs from either spreading
or non-spreading PLL; maximum system flexibility
• FLEX clock is pin selectable to be FPGA clock or USB
PHY clock; maximum system flexibility
• TEST pin tri-states all outputs; speeds up board test
• External 25MHz crystal; supports tight ppm
• OE# pins; support SRC power management
• Low power differential clock outputs; reduced power and
board space
• Differential outputs internally terminated to 100
differential impedance; reduced board space
• Space-saving 7x7mm 48-pin VFQFPN with 0.5mm pad
pitch; reduced board space without the need for fine pitch
assembly techniques