TX4939XBG-400 Toshiba, TX4939XBG-400 Datasheet - Page 722

• Manufacturer Part Number: TX4939XBG-400
• Manufacturer: Toshiba

Specifications of TX4939XBG-400

• Cpu Core: TX49/H4 90nm
• Clock Mhz/max Mips: 400/520
• Inst./data Cache: 32KB (4 Way)/32KB (4 Way)
• Tlb: x
• 1cycle Mac: x
• Volts (v): 1.25/2.5/3.3
• Peripherals: DDR, NAND, ATA, ETHERNET, SECURITY, FPU, MMU, SPI, I2S, I2C, PCI, VIDEO, UART, TIMER, RTC
• Companion Chip: TC86C001FG
• Package: PGBA456

Electrical
Rev. 3.1 November 1, 2005
CG
TX4939XB
Figure 28-3 Block Diagram of DDR SDRAM Controller
DLL
t_io_cell
D Q
D Q
D Q
Q
Q
D
D
28-6
t_driver
DRCKOUT
DRCKREF
DRCKP, DRCKM
DRA[13:0]
DRCS[1:0]*
DRRAS
DRCAS*
DRWE*
DRCKE
DRDM[3:0]
DRDQS[3:0]
DRDQ[31:0]
t_package +
Toshiba RISC Processor
t_board
DDR
SDRAM
TX4939
28
28