IDT723644 Integrated Device Technology, Inc., IDT723644 Datasheet

no-image

IDT723644

Manufacturer Part Number
IDT723644
Description
CMOS SyncBiFIFO? IDT723644CMOS SyncBiFIFO? IDT723644CMOS SyncBiFIFO?
Manufacturer
Integrated Device Technology, Inc.
Datasheet

Available stocks

Company
Part Number
Manufacturer
Quantity
Price
Part Number:
IDT723644L12PF
Manufacturer:
IDT, Integrated Device Technology Inc
Quantity:
10 000
Part Number:
IDT723644L12PF8
Manufacturer:
IDT, Integrated Device Technology Inc
Quantity:
10 000
Part Number:
IDT723644L15PF
Manufacturer:
IDT, Integrated Device Technology Inc
Quantity:
10 000
Part Number:
IDT723644L15PF8
Manufacturer:
IDT, Integrated Device Technology Inc
Quantity:
10 000
Part Number:
IDT723644L20PF
Manufacturer:
IDT
Quantity:
1 500
IDT, the IDT logo are registered trademark of Integrated Device Technology, Inc. SyncBiFIFO is a trademark of Integrated Device Technology, Inc.
EFA/ORA
FS1/SEN
FFA/IRA
2001 Integrated Device Technology, Inc. All rights reserved. Product specifications subject to change without notice.
Memory storage capacity:
Clock frequencies up to 83 MHz (8 ns access time)
Two independent clocked FIFOs buffering data in opposite
directions
Select IDT Standard timing (using EFA, EFB, FFA, and FFB flags
functions) or First Word Fall Through Timing (using ORA, ORB,
IRA, and IRB flag functions)
Programmable Almost-Empty and Almost-Full flags; each has
three default offsets (8, 16 and 64)
FS0/SD
MRS1
A
MBF2
PRS1
CLKA
W/RA
SPM
MBA
0
CSA
ENA
AFA
AEA
-A
IDT723624
IDT723634
IDT723644
35
Control
Port-A
FIFO1,
Mail1
Reset
Logic
Logic
256 x 36 x 2
512 x 36 x 2
1,024 x 36 x 2
36
36
CMOS SyncBiFIFO
256 x 36 x 2,
512 x 36 x 2,
1,024 x 36 x 2
10
FIFO1
FIFO2
Programmable Flag
Offset Registers
36
Pointer
Pointer
Write
Read
36
Status Flag
Status Flag
1,024 x 36
RAM ARRAY
RAM ARRAY
1,024 x 36
256 x 36
512 x 36
256 x 36
512 x 36
Register
Register
Mail 1
Mail 2
Logic
Logic
Pointer
Pointer
1
Timing
Read
Write
Mode
TM
Serial or parallel programming of partial flags
Port B bus sizing of 36-bits (long word), 18-bits (word) and
9-bits (byte)
Big- or Little-Endian format for word and byte bus sizes
Master Reset clears data and configures FIFO, Partial Reset
clears data but retains configuration settings
Mailbox bypass registers for each FIFO
Free-running CLKA and CLKB may be asynchronous or coinci-
dent (simultaneous reading and writing of data on a single clock
edge is permitted)
Auto power down minimizes power dissipation
Available in space saving 128-pin Thin Quad Flatpack (TQFP)
Industrial temperature range (–40 C to +85 C) is available
36
36
WITH BUS-MATCHING
36
36
FIFO2,
Mail2
Reset
Logic
Control
Port-B
Logic
IDT723624
IDT723634
IDT723644
3270 drw01
MBF1
EFB/ORB
AEB
FWFT
B
FFB/IRB
AFB
MRS2
PRS2
CLKB
CSB
W/RB
ENB
MBB
BE
BM
SIZE
DSC-3270/2
0
-B
35

Related parts for IDT723644

IDT723644 Summary of contents

Page 1

... Programmable Flag Timing Offset Registers Mode FIFO2 Status Flag Logic Read Write Pointer Pointer RAM ARRAY 256 512 x 36 1,024 x 36 Mail 2 Register 1 IDT723624 IDT723634 IDT723644 MBF1 36 EFB/ORB AEB FWFT FFB/IRB AFB 36 FIFO2, MRS2 Mail2 Reset PRS2 Logic CLKB CSB W/RB ...

Page 2

IDT723624/723634/723644 CMOS SyncBiFIFO™ WITH BUS-MATCHING 256 512 1,024 The IDT723624/723634/723644 is a monolithic, high-speed, low- power, CMOS bidirectional synchronous (clocked) FIFO memory which supports clock frequencies up to ...

Page 3

IDT723624/723634/723644 CMOS SyncBiFIFO™ WITH BUS-MATCHING 256 512 1,024 Communication between each port may bypass the FIFOs via two mailbox registers. The mailbox register width matches the selected Port ...

Page 4

IDT723624/723634/723644 CMOS SyncBiFIFO™ WITH BUS-MATCHING 256 512 1,024 Symbol Name I/O A0-A35 Port A Data I/O 36-bit bidirectional data port for side A. AEA Port A Almost- O ...

Page 5

IDT723624/723634/723644 CMOS SyncBiFIFO™ WITH BUS-MATCHING 256 512 1,024 Symbol Name I/O FS1/SEN Flag Offset I FS1/SEN and FS0/SD are dual-purpose inputs used for flag offset register programming. During ...

Page 6

... CC 6 COMMERCIAL TEMPERATURE RANGE Commercial Unit –0 –0 +0 –0 +0 ±20 mA ±50 mA ±50 mA ±400 mA –65 to 150 IDT723624 IDT723634 IDT723644 Commercial t = 12, 15ns CLK Min. Typ. (2) Max. Unit 2.4 — — — — 0.5 — — ±10 — — ±10 — — 8 — ...

Page 7

IDT723624/723634/723644 CMOS SyncBiFIFO™ WITH BUS-MATCHING 256 512 1,024 DETERMINING ACTIVE CURRENT CONSUMPTION AND POWER DISSIPATION The I current for the graph in Figure 1 was taken while simultaneously ...

Page 8

... Requirement to count the clock edge as one of at least four needed to reset a FIFO. 3. Skew time is not a timing constraint for proper device operation and is only included to illustrate the timing relationship between CLKA cycle and CLKB cycle. 4. Design simulated, not tested. COMMERCIAL TEMPERATURE RANGE Commercial IDT723624L12 IDT723624L15 IDT723634L12 IDT723634L15 IDT723644L12 IDT723644L15 Min. Max. — ...

Page 9

... Writing data to the mail1 register when the B0-B35 outputs are active and MBB is HIGH. 3. Writing data to the mail2 register when the A0-A35 outputs are active and MBA is HIGH. (2) (3) and CLKB to A0-A35 9 COMMERCIAL TEMPERATURE RANGE Commercial IDT723624L12 IDT723624L15 IDT723634L12 IDT723634L15 IDT723644L12 IDT723644L15 Min Max. Min. Max . Unit ...

Page 10

IDT723624/723634/723644 CMOS SyncBiFIFO™ WITH BUS-MATCHING 256 512 1,024 MASTER RESET (MRS1, MRS2) After power up, a Master Reset operation must be performed by providing a LOW pulse to ...

Page 11

... Valid programming values for the registers range from 1 to 252 for the IDT723624 508 for the IDT723634; and 1 to 1,020 for the IDT723644. After all the offset registers are programmed from Port A, the Port B Full/Input Ready flag (FFB/IRB) is set HIGH, and both FIFOs begin normal operation ...

Page 12

IDT723624/723634/723644 CMOS SyncBiFIFO™ WITH BUS-MATCHING 256 512 1,024 impedance state when either CSA or W/RA is HIGH. The A0-A35 lines are active outputs when both CSA and W/RA ...

Page 13

... IDT723644 (X1+1) to [1,024-(Y1+1)] (1,024-Y1) to 1,023 512 1,024 (1,2) (3) (3) IDT723644 (X2+1) to [1,024-(Y2+1)] (1,024-Y2) to 1,023 512 1,024 13 COMMERCIAL TEMPERATURE RANGE Synchronized Synchronized to CLKB to CLKA EFB/ORB AEB ...

Page 14

... HIGH when the number of words in its FIFO is less than or equal to [256- (Y+1)], [512-(Y+1)], or [1,024-(Y+1)] for the IDT723624, IDT723634, or IDT723644 respectively. Note that a data word present in the FIFO output register has been read from memory. Two LOW-to-HIGH transitions of the Almost-Full flag synchronizing clock are required after a FIFO read for its Almost-Full flag to reflect the new level of fill ...

Page 15

IDT723624/723634/723644 CMOS SyncBiFIFO™ WITH BUS-MATCHING 256 512 1,024 The Mail2 Register Flag (MBF2) is set HIGH by a LOW-to-HIGH transition on CLKA when a Port A read is ...

Page 16

IDT723624/723634/723644 CMOS SyncBiFIFO™ WITH BUS-MATCHING 256 512 1,024 BYTE ORDER ON PORT SIZE BYTE ORDER ON PORT SIZE H ...

Page 17

IDT723624/723634/723644 CMOS SyncBiFIFO™ WITH BUS-MATCHING 256 512 1,024 CLKA CLKB t RSTS MRS1 BE/FWFT SPM FS1,FS0 FFA/IRA EFB/ORB t RSF AEB t RSF AFA t RSF MBF1 NOTES: ...

Page 18

IDT723624/723634/723644 CMOS SyncBiFIFO™ WITH BUS-MATCHING 256 512 1,024 CLKA 1 4 MRS1, MRS2 t FSS t FSH SPM t FSS t FSH 0,0 FS1,FS0 FFA/IRA ENA A0-A35 CLKB ...

Page 19

IDT723624/723634/723644 CMOS SyncBiFIFO™ WITH BUS-MATCHING 256 512 1,024 CLK t t CLKH CLKL CLKA FFA/IRA HIGH t ENS1 CSA t ENS1 W/RA t ENS2 MBA t ENS2 ...

Page 20

IDT723624/723634/723644 CMOS SyncBiFIFO™ WITH BUS-MATCHING 256 512 1,024 CLKB FFB/IRB HIGH CSB W/RB MBB ENB B0-B17 (1) SIZE MODE BM SIZE ...

Page 21

IDT723624/723634/723644 CMOS SyncBiFIFO™ WITH BUS-MATCHING 256 512 1,024 CLK t CLKH CLKB EFB/ORB HIGH CSB W/RB MBB ENB t EN B0-B35 (Standard Mode B0-B35 ...

Page 22

IDT723624/723634/723644 CMOS SyncBiFIFO™ WITH BUS-MATCHING 256 512 1,024 CLKB EFB/ORB HIGH CSB W/RB MBB t ENS2 ENB t MDV t EN B0-B8 (Standard Mode) t MDV OR t ...

Page 23

IDT723624/723634/723644 CMOS SyncBiFIFO™ WITH BUS-MATCHING 256 512 1,024 CLKA CSA LOW WRA HIGH t ENS2 MBA t ENS2 ENA IRA HIGH t DS A0-A35 W1 t SKEW1 CLKB ...

Page 24

IDT723624/723634/723644 CMOS SyncBiFIFO™ WITH BUS-MATCHING 256 512 1,024 CLKA CSA LOW WRA HIGH t t ENS2 MBA t t ENS2 ENA FFA HIGH A0-A35 W1 ...

Page 25

IDT723624/723634/723644 CMOS SyncBiFIFO™ WITH BUS-MATCHING 256 512 1,024 CLKB CSB LOW W/RB LOW t t ENS2 ENH MBB t t ENH ENS2 ENB IRB HIGH ...

Page 26

IDT723624/723634/723644 CMOS SyncBiFIFO™ WITH BUS-MATCHING 256 512 1,024 CLKB CSB LOW W/RB LOW t t ENS2 ENH MBB t t ENS2 ENH ENB FFB HIGH ...

Page 27

IDT723624/723634/723644 CMOS SyncBiFIFO™ WITH BUS-MATCHING 256 512 1,024 CLK t t CLKH CLKL CLKB CSB LOW W/RB HIGH LOW MBB t ENS2 ENB ORB HIGH B0-B35 Previous ...

Page 28

IDT723624/723634/723644 CMOS SyncBiFIFO™ WITH BUS-MATCHING 256 512 1,024 CLK t t CLKH CLKL CLKB CSB LOW W/RB HIGH LOW MBB t ENS2 ENB EFB HIGH B0-B35 Previous ...

Page 29

IDT723624/723634/723644 CMOS SyncBiFIFO™ WITH BUS-MATCHING 256 512 1,024 CLK t t CLKH CLKL CLKA CSA LOW LOW W/RA LOW MBA t ENS2 ENA ORA HIGH A0-A35 Previous ...

Page 30

IDT723624/723634/723644 CMOS SyncBiFIFO™ WITH BUS-MATCHING 256 512 1,024 CLK t t CLKH CLKL CLKA CSA LOW LOW W/RA LOW MBA t ENS2 ENA EFA HIGH A0-A35 Previous ...

Page 31

... FIFO1 Write (CSA = LOW, W/RA = HIGH, MBA = LOW), FIFO1 read (CSB = LOW, W/RB = HIGH, MBB = LOW). Data in the FIFO1 output register has been read from the FIFO Maximum FIFO Depth = 256 for the IDT723624, 512 for the IDT723634, 1,024 for the IDT723644. ...

Page 32

... FIFO2 write (CSB = LOW, W/RB = LOW, MBB = LOW), FIFO2 read (CSA = LOW, W/RA = LOW, MBA = LOW). Data in the FIFO2 output register has been read from the FIFO Maximum FIFO Depth = 256 for the IDT723624, 512 for the IDT723634, 1,024 for the IDT723644. ...

Page 33

IDT723624/723634/723644 CMOS SyncBiFIFO™ WITH BUS-MATCHING 256 512 1,024 CLKB t ENS1 CSB t ENS1 W/RB t ENS2 MBB t ENS2 ENB B0-B35 CLKA MBF2 CSA W/RA MBA ENA ...

Page 34

IDT723624/723634/723644 CMOS SyncBiFIFO™ WITH BUS-MATCHING 256 512 1,024 PARAMETER MEASUREMENT INFORMATION From Output Timing 1.5 V Input Data, 1.5 V Enable Input VOLTAGE WAVEFORMS SETUP ...

Page 35

IDT X XX XXXXXX Device Type Power Speed NOTE: 1. Industrial temperature range is available by special order. 10/04/2000 pgs. 1 through 35, except pgs. 20, 24-26, 32 and 33. 03/22/2001 pgs. 6 and 7. 08/01/2001 pgs ...

Related keywords