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Integrated Silicon Solution Electronic Components Datasheet

IS42VS16100F Datasheet

512K Words x 16 Bits x 2 Banks 16Mb SDRAM

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IS42/45S16100F, IS42VS16100F
512K Words x 16 Bits x 2 Banks
16Mb SDRAM
JUNE 2012
FEATURES
• Clock frequency:
IS42/45S16100F: 200, 166, 143 MHz
IS42VS16100F: 133, 100 MHz
• Fully synchronous; all signals referenced to a
positive clock edge
• Two banks can be operated simultaneously and
independently
• Dual internal bank controlled by A11
(bank select)
• Single power supply:
IS42/45S16100F: Vdd/Vddq = 3.3V
IS42VS16100F: Vdd/Vddq = 1.8V
• LVTTL interface
• Programmable burst length
– (1, 2, 4, 8, full page)
• Programmable burst sequence:
Sequential/Interleave
• 2048 refresh cycles every 32 ms
• Random column address every clock cycle
• Programmable CAS latency (2, 3 clocks)
• Burst read/write and burst read/single write
operations capability
• Burst termination by burst stop and
precharge command
• Byte controlled by LDQM and UDQM
• Packages 400-mil 50-pin TSOP-II and 60-ball
BGA
• Lead-free package option
• Available in Industrial Temperature
DESCRIPTION
ISSI’s 16Mb Synchronous DRAM IS42S16100F,
IS45S16100F and IS42VS16100F are each organized
as a 524,288-word x 16-bit x 2-bank for improved
performance. The synchronous DRAMs achieve high-
speed data transfer using pipeline architecture. All
inputs and outputs signals refer to the rising edge of the
clock input.
ADDRESS TABLE
Parameter
Power Supply Vdd/Vddq
Refresh Count
Row Addressing
IS42/45S16100F IS42VS16100F
3.3V
1.8V
2K/32ms
2K/32ms
A0-A10
Column Addressing
Bank Addressing
Precharge Addressing
A0-A7
A11
A10
KEY TIMING PARAMETERS
Parameter
CLK Cycle Time
-5(1) -6(2) -7 (2) -75 (3) -10 (3) Unit
CAS Latency = 3 5 6 7 7.5 10 ns
CAS Latency = 2 10 10 10 10 12 ns
CLK Frequency
CAS Latency = 3 200 166 143 133 100 Mhz
CAS Latency = 2 100 100 100 100 83 Mhz
Access Time from
Clock
CAS Latency = 3
5 5.5 5.5 6
7 ns
CAS Latency = 2 6 6 6 8 8 ns
Notes:
1. Available for IS42S16100F only
2. Available for IS42S16100F and IS45S16100F only
3. Available for IS42VS16100F only
Copyright © 2012 Integrated Silicon Solution, Inc. All rights reserved. ISSI reserves the right to make changes to this specification and its products at any time without
notice. ISSI assumes no liability arising out of the application or use of any information, products or services described herein. Customers are advised to obtain the
latest version of this device specification before relying on any published information and before placing orders for products.
Integrated Silicon Solution, Inc. does not recommend the use of any of its products in life support applications where the failure or malfunction of the product can reason-
ably be expected to cause failure of the life support system or to significantly affect its safety or effectiveness. Products are not authorized for use in such applications
unless Integrated Silicon Solution, Inc. receives written assurance to its satisfaction, that:
a.) the risk of injury or damage has been minimized;
b.) the user assume all such risks; and
c.) potential liability of Integrated Silicon Solution, Inc is adequately protected under the circumstances
Integrated Silicon Solution, Inc. — www.issi.com
Rev. A
06/13/2012
1


Integrated Silicon Solution Electronic Components Datasheet

IS42VS16100F Datasheet

512K Words x 16 Bits x 2 Banks 16Mb SDRAM

No Preview Available !

IS42/45S16100F, IS42VS16100F
PIN CONFIGURATIONS
50-Pin TSOP (Type II)
VDD
DQ0
DQ1
VSSQ
DQ2
DQ3
VDDQ
DQ4
DQ5
VSSQ
DQ6
DQ7
VDDQ
LDQM
WE
CAS
RAS
CS
A11
A10
A0
A1
A2
A3
VDD
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
50 VSS
49 DQ15
48 DQ14
47 VSSQ
46 DQ13
45 DQ12
44 VDDQ
43 DQ11
42 DQ10
41 VSSQ
40 DQ9
39 DQ8
38 VDDQ
37 NC
36 UDQM
35 CLK
34 CKE
33 NC
32 A9
31 A8
30 A7
29 A6
28 A5
27 A4
26 VSS
PIN DESCRIPTIONS
A0-A11
Address Input
A0-A10
Row Address Input
A11
Bank Select Address
A0-A7
Column Address Input
DQ0 to DQ15 Data DQ
CLK
System Clock Input
CKE
Clock Enable
CS
Chip Select
RAS
Row Address Strobe Command
CAS Column Address Strobe Command
WE Write Enable
LDQM Lower Bye, Input/Output Mask
UDQM Upper Bye, Input/Output Mask
VDD Power
VSS Ground
VDDQ Power Supply for DQ Pin
VSSQ Ground for DQ Pin
NC No Connection
2 Integrated Silicon Solution, Inc. — www.issi.com
Rev.  A
06/13/2012


Part Number IS42VS16100F
Description 512K Words x 16 Bits x 2 Banks 16Mb SDRAM
Maker ISSI
Total Page 30 Pages
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