Intel Atom E645CT socket: BGA 1466
The Intel Atom E645CT uses BGA 1466, the 1,466-ball soldered package for Stellarton embedded processors. It is a single core Bonnell processor with two threads at 1 GHz and a 3.6 W TDP for industrial temperature designs.
- Socket
- BGA 1466
- Launched
- November 22, 2010
- Cores and threads
- 1 and 2
- Base power
- 3.6 W
- Codename
- Stellarton
- Segment
- Embedded
- Family
- Intel Atom
- Clocks
- 1.0 GHz
Intel Atom E645CT specifications
| Cores | 1 |
|---|---|
| Threads | 2 |
| Core architecture | Bonnell on 45 nm |
| Clocks | 1 GHz (no turbo) |
| Cache | 512 KB L2, no L3 |
| Processor base power (TDP) | 3.6 W |
| Manufacturing process | 45 nm |
| Memory support | DDR2-800, single channel, up to 2 GB |
| PCI Express | PCIe 1.0a x4 from the CPU |
| Integrated graphics | GMA600 at 320 MHz |
| Multiplier | Locked |
| Package | FC-BGA 1466 (soldered) |
Motherboard compatibility
Intel Atom E645CT needs a motherboard with a BGA 1466 socket. Chipset by chipset data for this codename is not recorded yet. See the BGA 1466 chipset list and the board maker's CPU support list.
BGA 1466 at a glance
| Type | BGA, 1,466 contacts |
|---|---|
| Package size | n/a |
| Introduced | November 2010 |
| Memory | DDR2 single channel up to DDR2-800, up to 2 GB |
| Cooler mounting holes | Not applicable (soldered) |
What the Atom E645CT is
The Intel Atom E645CT is the 1 GHz member of the Atom E600C Stellarton embedded stack on BGA 1466. It runs one Bonnell core with Hyper-Threading for two threads at 1 GHz with no turbo, backed by 512 KB of L2 cache and no L3 cache. Power is rated at 3.6 W on a 45 nm process in the FC-BGA 1466 package. Intel lists November 22, 2010 as the launch date with industrial temperature range of minus 40 to 85 C.
One core with two threads at 1 GHz suits fanless gateways, kiosks and in-vehicle terminals where industrial range matters more than speed. The CT suffix marks the minus 40 to 85 C part, while the E645C is the commercial 0 to 70 C version at identical clocks and power. GMA600 graphics at 320 MHz cover basic displays without a discrete card.
Memory is single-channel DDR2 up to DDR2-800 with up to 2 GB fixed per board. The SoC also carries 4 lanes of PCIe 1.0a, USB, LVDS and serial DVO outputs with HD audio.
Socket and motherboard compatibility
The Atom E645CT is soldered to the board in BGA 1466 and cannot be replaced. Board replacement is the only path to more performance, so choose clock and temperature range at design time.
Compatibility depends on firmware, so a board revision needs a BIOS that knows the Stellarton B0 stepping. The CPU cooler compatibility by socket guide covers soldered rules.
Memory, PCIe and cooling
Memory on this SKU is single-channel DDR2 up to DDR2-800 with up to 2 GB. The board fixes the memory, so check the vendor list. ECC is not part of this SKU.
Expansion comes from 4 lanes of PCIe 1.0a plus display and USB. The lanes usually split between boot storage and networking.
Cooling has no retail answer on BGA 1466. The 3.6 W envelope suits passive spreaders, and the industrial CT rating to 85 C suits sealed cabinets.
Upgrade paths
There is no CPU upgrade path on BGA 1466 because the chip is soldered. A move to more performance means a new board, either the 1.3 GHz E665CT in the same package or a later Atom platform.
Keep the E645CT where a 1 GHz dual threaded core covers the terminal workload at industrial temperatures.
Frequently asked questions
What socket does the Intel Atom E645CT use?
BGA 1466 (FC-BGA 1466), the soldered 1,466-ball package. The chip cannot be removed.
How are the cores of the E645CT arranged?
One Bonnell core with Hyper-Threading for two threads at 1 GHz, with 512 KB of L2 cache.
What memory does the E645CT need?
DDR2 single channel up to DDR2-800 with up to 2 GB, fixed per board.
What does the CT suffix mean?
The CT suffix marks minus 40 to 85 C industrial range. The E645C is the 0 to 70 C commercial version at the same clocks and power.
Sources and verification
Facts last checked against these sources on . Page last edited on .