k7n163631b-qc250 Samsung Semiconductor, Inc., k7n163631b-qc250 Datasheet - Page 11

• Manufacturer Part Number: k7n163631b-qc250
• Description: 512kx36 & 1mx18-bit Pipelined Ntram
• Manufacturer: Samsung Semiconductor, Inc.

K7N163631B
K7N161831B
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
X
X
X
X
X
L
L
L
L
1
WE
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).
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
X
X
H
X
X
X
X
X
X
L
L
L
L
2
ADV
H
H
H
H
H
X
BWa
L
L
L
L
L
L
L
H
H
H
H
X
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
H
H
X
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
BWb
CLK
BWc
X
H
H
L
L
↑
↑
↑
↑
↑
↑
↑
↑
↑
↑
↑
↑
↑
512Kx36 & 1Mx18 Pipelined NtRAM
X
H
H
H
H
L
L
- 11 -
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
H
H
H
H
X
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
Rev. 3.0 April 2006
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
READ
Not Selected
Not Selected
Not Selected
Ignore Clock
Write Abort
Operation
TM