IDT70V25L25PF IDT, Integrated Device Technology Inc, IDT70V25L25PF Datasheet

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IDT70V25L25PF

Manufacturer Part Number
IDT70V25L25PF
Description
IC SRAM 128KBIT 25NS 100TQFP
Manufacturer
IDT, Integrated Device Technology Inc
Datasheet

Specifications of IDT70V25L25PF

Format - Memory
RAM
Memory Type
SRAM - Dual Port, Asynchronous
Memory Size
128K (8K x 16)
Speed
25ns
Interface
Parallel
Voltage - Supply
3 V ~ 3.6 V
Operating Temperature
0°C ~ 70°C
Package / Case
100-TQFP, 100-VQFP
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant
Other names
70V25L25PF

Available stocks

Company
Part Number
Manufacturer
Quantity
Price
Part Number:
IDT70V25L25PF
Manufacturer:
IDT, Integrated Device Technology Inc
Quantity:
10 000
Part Number:
IDT70V25L25PF8
Manufacturer:
IDT, Integrated Device Technology Inc
Quantity:
10 000
Part Number:
IDT70V25L25PFGI
Manufacturer:
IDT
Quantity:
825
Part Number:
IDT70V25L25PFGI
Manufacturer:
IDT, Integrated Device Technology Inc
Quantity:
10 000
Part Number:
IDT70V25L25PFGI8
Manufacturer:
IDT, Integrated Device Technology Inc
Quantity:
10 000
Part Number:
IDT70V25L25PFI
Manufacturer:
IDT, Integrated Device Technology Inc
Quantity:
10 000
Functional Block Diagram
NOTES:
1. A
2. (MASTER): BUSY is output; (SLAVE): BUSY is input.
3. BUSY outputs and INT outputs are non-tri-stated push-pull.
4. I/O
5. I/O
©2008 Integrated Device Technology, Inc.
Features
True Dual-Ported memory cells which allow simultaneous
reads of the same memory location
High-speed access
IDT70V35/34
– Commercial: 15/20/25ns (max.)
– Industrial: 20ns
IDT70V25/24
– Commercial: 15/20/25/35/55ns (max.)
– Industrial: 20/25ns
Low-power operation
– IDT70V35/34S
– IDT70V25/24S
12
0
8
x - I/O
x - I/O
Active: 430mW (typ.)
Standby: 3.3mW (typ.)
Active: 400mW (typ.)
Standby: 3.3mW (typ.)
is a NC for IDT70V34 and for IDT70V24.
I/O
I/O
9L
0L
7
15
x for IDT70V25/24.
-I/O
BUSY
x for IDT70V25/24.
-I/O
A
SEM
R/W
12L
INT
UB
CE
OE
LB
17L
A
8L
(1)
0L
L
L
L
L
L
L
L
L
(4)
(5)
(2,3)
(3)
– IDT70V25/24L
– IDT70V35/34L
Decoder
Address
Standby: 660 µ W (typ.)
Active: 415mW (typ.)
Active: 380mW (typ.)
R/W
Standby: 660 µ W (typ.)
CE
OE
L
L
L
HIGH-SPEED 3.3V
8/4K x 18 DUAL-PORT
8/4K x 16 DUAL-PORT
STATIC RAM
13
Control
I/O
ARBITRATION
SEMAPHORE
INTERRUPT
MEMORY
ARRAY
LOGIC
M/S
1
Separate upper-byte and lower-byte control for multiplexed
bus compatibility
IDT70V35/34 (IDT70V25/24) easily expands data bus width
to 36 bits (32 bits) or more using the Master/Slave select
when cascading more than one device
M/S = V
M/S = V
BUSY and Interrupt Flag
On-chip port arbitration logic
Full on-chip hardware support of semaphore signaling
between ports
Fully asynchronous operation from either port
LVTTL-compatible, single 3.3V (±0.3V) power supply
Available in a 100-pin TQFP (IDT70V35/24) & (IDT70V25/24),
86-pin PGA (IDT70V25/24) and 84-pin PLCC (IDT70V25/24)
Industrial temperature range (-40°C to +85°C) is available
for selected speeds
Green parts available, see ordering information
Control
I/O
IH
IL
for BUSY input on Slave
for BUSY output flag on Master
13
Decoder
Address
CE
OE
R/W
R
R
R
IDT70V35/34S/L
IDT70V25/24S/L
OCTOBER 2008
5624 drw 01
I/O
I/O
R/W
UB
LB
CE
OE
BUSY
A
SEM
INT
A
12R
0R
9R
0R
R
R
R
R
R
-I/O
R
-I/O
(1)
R
(3)
R
(2,3)
17R
8R
DSC-5624/7
(4)
(5)
,

Related parts for IDT70V25L25PF

IDT70V25L25PF Summary of contents

Page 1

... Features True Dual-Ported memory cells which allow simultaneous reads of the same memory location High-speed access IDT70V35/34 – Commercial: 15/20/25ns (max.) – Industrial: 20ns IDT70V25/24 – Commercial: 15/20/25/35/55ns (max.) – Industrial: 20/25ns Low-power operation – IDT70V35/34S – IDT70V35/34L Active: 430mW (typ.) Active: 415mW (typ.) Standby: 660 µ ...

Page 2

... This device provides two independent ports with separate control, address, and I/O pins that permit independent, asynchronous access for reads or writes to any location in memory. An automatic power down Pin Configurations (1,2,3,4) 06/24/04 ...

Page 3

IDT70V35/34S/L (IDT70V25/24S/L) High-Speed 3.3V 8/ (8/4K x 16) Dual-Port Static RAM Pin Configurations (1,2,3,4) 06/24/04 Index 100 ...

Page 4

IDT70V35/34S/L (IDT70V25/24S/L) High-Speed 3.3V 8/ (8/4K x 16) Dual-Port Static RAM Pin Configurations (1,2,3,4) 06/11/ I/O I/O I I/O I/O I/O 10L I/O I/O ...

Page 5

IDT70V35/34S/L (IDT70V25/24S/L) High-Speed 3.3V 8/ (8/4K x 16) Dual-Port Static RAM Pin Configurations (1,2,3,4) 06/08/04 INDEX I I I/O 10L 14 ...

Page 6

IDT70V35/34S/L (IDT70V25/24S/L) High-Speed 3.3V 8/ (8/4K x 16) Dual-Port Static RAM Pin Names Left Port Right Port CE CE Chip Enable L R R/W R/W Read/Write Enable Output Enable L R (1) (1) A ...

Page 7

IDT70V35/34S/L (IDT70V25/24S/L) High-Speed 3.3V 8/ (8/4K x 16) Dual-Port Static RAM Absolute Maximum Ratings Symbol Rating (2) V Terminal Voltage TERM with Respect to GND T Temperature BIAS Under Bias T Storage STG Temperature T Junction Temperature JN ...

Page 8

IDT70V35/34S/L (IDT70V25/24S/L) High-Speed 3.3V 8/ (8/4K x 16) Dual-Port Static RAM DC Electrical Characteristics Over the Operating Temperature and Supply Voltage Range for 70V35/34 Symbol Parameter Dynamic Operating , Outputs Disabled DD IL SEM ...

Page 9

IDT70V35/34S/L (IDT70V25/24S/L) High-Speed 3.3V 8/ (8/4K x 16) Dual-Port Static RAM DC Electrical Characteristics Over the Operating Temperature and Supply Voltage Range for 70V25/24 Symbol Parameter Dynamic Operating , Outputs Open DD IL SEM ...

Page 10

IDT70V35/34S/L (IDT70V25/24S/L) High-Speed 3.3V 8/ (8/4K x 16) Dual-Port Static RAM AC Electrical Characteristics Over the Operating Temperature and Supply Voltage Range for 70V35/34 Symbol Parameter READ CYCLE t Read Cycle Time RC t Address Access Time AA ...

Page 11

IDT70V35/34S/L (IDT70V25/24S/L) High-Speed 3.3V 8/ (8/4K x 16) Dual-Port Static RAM AC Electrical Characteristics Over the Operating Temperature and Supply Voltage Range for 70V25/24 Symbol Parameter READ CYCLE t Read Cycle Time RC t Address Access Time AA ...

Page 12

IDT70V35/34S/L (IDT70V25/24S/L) High-Speed 3.3V 8/ (8/4K x 16) Dual-Port Static RAM AC Electrical Characteristics Over the Operating Temperature and Supply Voltage for 70V35/34 Symbol WRITE CYCLE t Write Cycle Time WC (3) t Chip Enable to End-of-Write EW ...

Page 13

IDT70V35/34S/L (IDT70V25/24S/L) High-Speed 3.3V 8/ (8/4K x 16) Dual-Port Static RAM AC Electrical Characteristics Over the Operating Temperature and Supply Voltage for 70V25/24 Symbol WRITE CYCLE t Write Cycle Time WC (3) t Chip Enable to End-of-Write EW ...

Page 14

... DW the specified access SRAM and SEM = ( ( ( LOW and a LOW CE and a LOW R/W for memory array writing cycle. To access Semaphore and 6.42 14 Industrial and Commercial Temperature Ranges (1,5, allow the I/O drivers to turn off and data and SEM = must be met for either condition ...

Page 15

IDT70V35/34S/L (IDT70V25/24S/L) High-Speed 3.3V 8/ (8/4K x 16) Dual-Port Static RAM Timing Waveform of Semaphore Read after Write Timing, Either Side A -A VALID ADDRESS 0 2 SEM I R/W OE NOTES ...

Page 16

IDT70V35/34S/L (IDT70V25/24S/L) High-Speed 3.3V 8/ (8/4K x 16) Dual-Port Static RAM AC Electrical Characteristics Over the Operating Temperature and Supply Voltage Range for 70V35/34 Symbol BUSY TIMING (M BUSY Access Time from Address Match ...

Page 17

IDT70V35/34S/L (IDT70V25/24S/L) High-Speed 3.3V 8/ (8/4K x 16) Dual-Port Static RAM AC Electrical Characteristics Over the Operating Temperature and Supply Voltage Range for 70V25/24 Symbol Parameter BUSY TIMING (M BUSY Access Time from Address ...

Page 18

IDT70V35/34S/L (IDT70V25/24S/L) High-Speed 3.3V 8/ (8/4K x 16) Dual-Port Static RAM Timing Waveform of Write with BUSY R/W "A" BUSY "B" R/W "B" NOTES: must be met for both master BUSY input (slave) and output (master ...

Page 19

IDT70V35/34S/L (IDT70V25/24S/L) High-Speed 3.3V 8/ (8/4K x 16) Dual-Port Static RAM AC Electrical Characteristics Over the Operating Temperature and Supply Voltage Range for 70V35/34 Symbol Parameter INTERRUPT TIMING t Address Set-up Time AS t Write Recovery Time WR ...

Page 20

IDT70V35/34S/L (IDT70V25/24S/L) High-Speed 3.3V 8/ (8/4K x 16) Dual-Port Static RAM Waveform of Interrupt Timing ADDR "A" ( "A" R/W "A" INT "B" ADDR "B" "B" OE "B" INT "B" NOTES: 1. ...

Page 21

IDT70V35/34S/L (IDT70V25/24S/L) High-Speed 3.3V 8/ (8/4K x 16) Dual-Port Static RAM Truth Table III — Interrupt Flag Left Port 12L 1FFF ...

Page 22

... HIGH). When a port is enabled, access to the entire memory array is permitted. Interrupts If the user chooses the interrupt function, a memory location (mail box or message center) is assigned to each port. The left port interrupt flag (INT ) is asserted when the right port writes to memory location 1FFE ...

Page 23

... The eight semaphore flags reside within the IDT70V35/34 (IDT70V25/ 24 separate memory space from the Dual-Port SRAM. This address space is accessed by placing a LOW input on the SEM pin (which acts as Industrial and Commercial Temperature Ranges ...

Page 24

... Semaphores are a useful form of arbitration in systems like disk interfaces where the CPU must be locked out of a section of memory during a transfer and the I/O device cannot tolerate any wait states. With the use of semaphores, once the two devices has determined which memory area was “ ...

Page 25

IDT70V35/34S/L (IDT70V25/24S/L) High-Speed 3.3V 8/ (8/4K x 16) Dual-Port Static RAM Ordering Information A XXXXX A 999 A Device Power Speed Package Step Type NOTES: 1. Contact your local sales office for Industrial temp range for other speeds, ...

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