hm62g18512 Renesas Electronics Corporation., hm62g18512 Datasheet - Page 3

• Manufacturer Part Number: hm62g18512
• Description: 8m Synchronous Fast Static Ram 512k-word X 18-bit - Hitachi Semiconductor
• Manufacturer: Renesas Electronics Corporation.

Pin Description
Name
V
V
V
V
K
K
SS
SWE
SAn
SWEx
G
ZZ
ZQ
DQxn
M1, M2
TMS
TCK
TDI
TDO
NC
M1
V
Notes: 1. ZQ is to be connected to V
DD
SS
DDQ
REF
SS
2. There is 1 protocol with mode pin. Mode control pins (M1, M2) are to be tied either V
open, output buffer impedance will be maximum. A case of minimum impedance, it needs to
connect over 120
respectively. The state of the Mode control inputs must be set before power-up and must not
change during device operation. Mode control inputs are not standard inputs and may not meet
V
operation.
IH
or V
IL
M2
V
specification. This SRAM is tested only in the synchronous register to register
I/O type
Supply
Supply
Supply
Supply
Input
Input
Input
Input
Input
Input
Input
Input
Input
I/O
Input
Input
Input
Input
Output
—
DD
between ZQ and V
SS
Descriptions
Core power supply
Ground
Output power supply
Input reference: provides input reference voltage
Clock input. Active high.
Clock input. Active low.
Synchronous chip select
Synchronous write enable
Synchronous address input
Synchronous byte write enables
Asynchronous output enable
Power down mode select
Output impedance control
Synchronous data input/output
Output protocol mode select
Boundary scan test mode select
Boundary scan test clock
Boundary scan test data input
Boundary scan test data output
No connection
Protocol
Synchronous register to register operation
via a resistance RQ where 150
SS
.
RQ
HM62G18512 Series
300
, if ZQ = V
Notes
n = 0, 1, 2...18
x = a, b
1
x = a, b
n = 0, 1, 2...8
Notes
2
DD
or V
DDQ
or
SS
3