IS41C16105C
IS41LV16105C
1Mx16
16MbDRAMWITHFASTPAGEMODE
FEBRUARY2012
FEATURES DESCRIPTION
TTL compatible inputs and outputs; tristate I/O
The ISSI IS41C16105C and IS41LV16105C are 1,048,576 x
16-bit high-performance CMOS Dynamic Random Access
Refresh Interval:
Memories. Fast Page Mode allows 1,024 random accesses
1,024 cycles/16 ms
within a single row with access cycle time as short as 20 ns
per 16-bit word. It is asynchronous, as it does not require a
Refresh Mode:
clock signal input to synchronize commands and I/O.
RAS-Only, CAS-before-RAS (CBR), and Hidden
These features make the IS41C16105C and IS41LV16105C
JEDEC standard pinout
ideally suited for high-bandwidth graphics, digital signal
Single power supply:
processing, high-performance computing systems, and
5V 10% (IS41C16105C)
peripheral applications that run without a clock to synchronize
3.3V 10% (IS41LV16105C) with the DRAM.
The IS41C/LV16105C is packaged in a 42-pin 400-mil SOJ
Byte Write and Byte Read operation via two CAS
and 400-mil 50/44-pin TSOP (Type II).
o o
Industrial Temperature Range -40 C to 85 C
KEYTIMINGPARAMETERS
Parameter -50 Unit
Max. RAS Access Time (t rac ) 50 ns
Max. CAS Access Time (t cac ) 13 ns
Max. Column Address Access Time (t aa) 25 ns
Min. Fast Page Mode Cycle Time (t pc ) 20 ns
Min. Read/Write Cycle Time (t rc ) 84 ns
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 lat-
est 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 reasonably be ex-
pected 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. 1-800-379-4774 1
Rev. A
02/24/2012IS41C16105C
IS41LV16105C
PIN CONFIGURATIONS
44(50)-PinTSOP(TypeII) 42-PinSOJ
VDD 1 44 GND
VDD 1 42 GND
I/O0 2 43 I/O15
I/O0 2 41 I/O15
I/O1 3 42 I/O14
I/O1 3 40 I/O14
I/O2 4 41 I/O13
I/O2 4 39 I/O13
I/O3 5 40 I/O12
I/O3 5 38 I/O12
VDD 6 39 GND
VDD 6 37 GND
I/O4 7 38 I/O11
I/O4 7 36 I/O11
I/O5 8 37 I/O10
I/O5 8 35 I/O10
I/O6 9 36 I/O9
I/O7 10 35 I/O8 I/O6 9 34 I/O9
NC 11 34 NC
I/O7 10 33 I/O8
NC 11 32 NC
NC 12 33 NC
NC 12 31 LCAS
NC 13 32 LCAS
WE 13 30 UCAS
WE 14 31 UCAS
RAS 14 29 OE
RAS 15 30 OE
NC 15 28 A9
NC 16 29 A9
NC 16 27 A8
NC 17 28 A8
A0 17 26 A7
A0 18 27 A7
A1 19 26 A6 A1 18 25 A6
A2 20 25 A5
A2 19 24 A5
A3 21 24 A4
23 A4
A3 20
VDD 22 23 GND
VDD 21 22 GND
PINDESCRIPTIONS
A0-A9 Address Inputs
I/O0-15 Data Inputs/Outputs
WE Write Enable
OE Output Enable
RAS Row Address Strobe
UCAS Upper Column Address Strobe
LCAS Lower Column Address Strobe
Vdd Power
GND Ground
NC No Connection
2 Integrated Silicon Solution, Inc. 1-800-379-4774
Rev. A
02/24/2012