NOTE: Throughout this data sheet, a BOLD ITALIC type font is used for all references to Enhanced Operating Mode features which do not function in IDT-Compatible Operating Mode; and also for all references to the retransmit facility (which is not an IDT72235B/45B FIFO feature), even though it may be used – subject to some restrictions – in either of these two.
• Fast Cycle Times: 20/25/35 ns
• Pin-Compatible Drop-In Replacements for
IDT72235B/45B FIFOs
2048 × 18 / 4096 × 18 Synchronous FIFOs
• May be Cascaded for Increased Depth, or
Paralleled for Increased Width
• 16 mA-IOL High-Drive Three-State Outputs
• Five Status Flags: Full, Almost-Full, Half-Full,
Almost-Empty, and Empty; ‘Almost’ Flags are Programmable
• Choice of IDT-Compatible or Enhanced Operating
Mode; Selected by an Input Control Signal
• Device Comes Up into One of Two Known Default
States at Reset Depending on the State of the EMODE Control Input: Programming is Allowed, but is n.
No. | Partie # | Fabricant | Description | Fiche Technique |
---|---|---|---|---|
1 | LH540202 |
Sharp Electrionic Components |
CMOS 1024 x 9 Asynchronous FIFO | |
2 | LH540203 |
Sharp Electrionic Components |
CMOS 2048 x 9 Asynchronous FIFO | |
3 | LH540204 |
Sharp Electrionic Components |
CMOS 4096 x 9 Asynchronous FIFO | |
4 | LH540205 |
Sharp Electrionic Components |
CMOS 8192 x 9 Asynchronous FIFO | |
5 | LH540215 |
Sharp Electrionic Components |
512 x 18 / 1024 x 18 Synchronous FIFO | |
6 | LH540225 |
Sharp Electrionic Components |
512 x 18 / 1024 x 18 Synchronous FIFO | |
7 | LH540245 |
Sharp Electrionic Components |
2048 x 18 / 4096 x 18 Synchronous FIFOs | |
8 | LH5420 |
Sharp |
256 x 36 x 2 Bidirectional FIFO | |
9 | LH5424 |
Siemens Semiconductor Group |
5 mm T1 3/4 LED/ Non Diffused Super-Bright/ Hyper-Red GaAIAs-LED | |
10 | LH543601 |
Sharp Electrionic Components |
256 x 36 x 2 Bidirectional FIFO | |
11 | LH543611 |
Sharp Electrionic Components |
512 x 36 x 2 / 1024 x 36 x 2 Synchronous Bidirectional FIFO | |
12 | LH543620 |
Sharp Electrionic Components |
1024 x 36 Synchronous FIFO |