K7N161845M SAMSUNG [Samsung semiconductor], K7N161845M Datasheet - Page 9

• Manufacturer Part Number: K7N161845M
• Description: 512Kx36 & 1Mx18-Bit Pipelined NtRAMTM
• Manufacturer: SAMSUNG [Samsung semiconductor]

K7N163645M
K7N161845M
TRUTH TABLES
SYNCHRONOUS TRUTH TABLE
Notes : 1. X means "Don t Care".
WRITE TRUTH TABLE
Notes : 1. X means "Don t Care".
WRITE TRUTH TABLE
Notes : 1. X means "Don t Care".
CS
H
X
X
X
L
X
L
X
L
X
L
X
X
1
2. All inputs in this table must meet setup and hold time around the rising edge of CLK( ).
2. All inputs in this table must meet setup and hold time around the rising edge of CLK( ).
3. A continue deselect cycle can only be enterd if a deselect cycle is executed first.
4. WRITE = L means Write operation in WRITE TRUTH TABLE.
5. Operation finally depends on status of asynchronous input pins(ZZ and OE).
WE
H
L
L
L
L
L
L
CS
WRITE = H means Read operation in WRITE TRUTH TABLE.
X
X
X
H
X
H
X
H
X
H
X
X
L
WE
H
L
L
L
L
2
CS
H
X
X
X
L
X
L
X
L
X
L
X
X
2
ADV
H
H
H
H
H
X
BWa
L
L
L
L
L
L
L
X
H
H
H
H
L
L
(x18)
(x36)
WE
X
X
X
X
H
X
H
X
X
X
X
L
L
2. The rising edge of clock is symbolized by ( ).
BWa
X
H
H
L
L
BWx
X
X
X
X
X
X
X
X
H
H
X
L
L
BWb
X
H
H
H
H
L
L
OE
X
X
X
X
H
H
X
X
X
X
X
L
L
CKE
H
L
L
L
L
L
L
L
L
L
L
L
L
CLK
BWb
BWc
X
H
H
L
L
512Kx36 & 1Mx18 Pipelined NtRAM
H
H
H
H
X
L
L
- 9 -
ADDRESS ACCESSED
External Address
External Address
External Address
Current Address
Next Address
Next Address
Next Address
Next Address
BWd
N/A
N/A
N/A
N/A
N/A
X
H
H
H
H
L
L
WRITE ABORT/NOP
WRITE ALL BYTEs
WRITE BYTE a
WRITE BYTE b
OPERATION
READ
WRITE ABORT/NOP
Continue Burst Read Cycle
Continue Burst Write Cycle
WRITE ALL BYTEs
Begin Burst Read Cycle
Begin Burst Write Cycle
Not Selected Continue
WRITE BYTE a
WRITE BYTE b
WRITE BYTE c
WRITE BYTE d
OPERATION
NOP/Dummy Read
NOP/Write Abort
Dummy Read
OPERATION
READ
Not Selected
Not Selected
Not Selected
Ignore Clock
Write Abort
January 2000
Rev 1.0
TM