IDT72T1845L4-4BB IDT, Integrated Device Technology Inc, IDT72T1845L4-4BB Datasheet - Page 6

• Manufacturer Part Number: IDT72T1845L4-4BB
• Description: IC FIFO 2048X18 2.5V 4NS 240BGA
• Manufacturer: IDT, Integrated Device Technology Inc
• Series: 72Tr

Specifications of IDT72T1845L4-4BB

• Function: Asynchronous, Dual Port
• Memory Size: 36.8K (2K x 18)
• Data Rate: 10MHz
• Access Time: 3.4ns
• Voltage - Supply: 2.375 V ~ 2.625 V
• Operating Temperature: 0°C ~ 70°C
• Mounting Type: Surface Mount
• Package / Case: 240-BGA
• Configuration: Dual
• Density: 36Kb
• Access Time (max): 3.4/8ns
• Word Size: 9/18Bit
• Organization: 2Kx18/4Kx9
• Sync/async: Synchronous
• Expandable: Yes
• Bus Direction: Uni-Directional
• Package Type: PBGA
• Clock Freq (max): 225/100MHz
• Operating Supply Voltage (typ): 2.5V
• Operating Supply Voltage (min): 2.375V
• Operating Supply Voltage (max): 2.625V
• Supply Current: 60mA
• Operating Temp Range: 0C to 70C
• Operating Temperature Classification: Commercial
• Mounting: Surface Mount
• Pin Count: 144
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Other names: 72T1845L4-4BB

TABLE 1 — BUS-MATCHING CONFIGURATION MODES
IDT72T1845/55/65/75/85/95/105/115/125 2.5V TeraSync™ 18-BIT/9-BIT FIFO
8Kx9, 8Kx18/16Kx9, 16Kx18/32Kx9, 32Kx18/64Kx9, 64Kx18/128Kx9, 128Kx18/256Kx9, 256Kx18/512Kx9, 512Kx18/1Mx9
PROGRAMMABLE ALMOST-FULL (PAF)
I W
H
H
L
L
FULL FLAG/INPUT READY (FF/IR)
FIRST WORD FALL THROUGH/
WRITE CHIP SELECT (WCS)
WRITE CLOCK (WCLK/WR)
(x18, x9) DATA IN (D
SERIAL INPUT (FWFT/SI)
SERIAL CLOCK (SCLK)
WRITE ENABLE (WEN)
SERIAL ENABLE(SEN)
Figure 1. Single Device Configuration Signal Flow Diagram
PARTIAL RESET (PRS)
INPUT WIDTH (IW)
LOAD (LD)
OW
0
H
H
L
L
- D
n
)
72T18105
72T18115
72T18125
72T1845
72T1855
72T1865
72T1875
72T1885
72T1895
IDT
6
MASTER RESET (MRS)
OUTPUT WIDTH (OW)
REN ECHO, EREN
RCLK ECHO, ERCLK
RETRANSMIT (RT)
PROGRAMMABLE ALMOST-EMPTY (PAE)
READ CLOCK (RCLK/RD)
READ ENABLE (REN)
EMPTY FLAG/OUTPUT READY (EF/OR)
HALF-FULL FLAG (HF)
BIG-ENDIAN/LITTLE-ENDIAN (BE)
INTERSPERSED/
NON-INTERSPERSED PARITY (IP)
(x18, x9) DATA OUT (Q
MARK
OUTPUT ENABLE (OE)
READ CHIP SELECT (RCS)
Write Port Width
2Kx18/4Kx9, 4Kx18/
x18
x18
x9
x9
0
- Q
COMMERCIAL AND INDUSTRIAL
n
)
TEMPERATURE RANGES
Read Port Width
FEBRUARY 10, 2009
5909 drw03
x18
x18
x9
x9