HM-6551 Intersil Corporation, HM-6551 Datasheet - Page 4

• Manufacturer Part Number: HM-6551
• Description: 256 X 4 Cmos Ram
• Manufacturer: Intersil Corporation

Device Guaranteed and 100% Tested
NOTES:
Chip Enable
Access Time
Address Access
Time
Chip Select 1
Output Enable
Time
Write Enable
Output Disable
Time
Chip Select 1
Output Disable
Time
Chip Enable Pulse
Negative Width
Chip Enable Pulse
Positive Width
Address Setup
Time
Chip Select 2
Setup Time
Address Hold Time (10) TELAX
Chip Select 2 Hold
Time
Data Setup Time
Data Hold Time
Chip Select 1 Write
Pulse Setup Time
Chip Enable Write
Pulse Setup Time
Chip Select 1 Write
Pulse Hold Time
Chip Enable Write
Pulse Hold Time
Write Enable Pulse
Width
Read or Write
Cycle Time
1. All voltages referenced to device GND.
2. Input pulse levels: 0.8V to VCC-2.0V; Input rise and fall times: 5ns (max); Input and output timing reference level: 1.5V; Output load:
3. TAVQV = TELQV + TAVEL.
PARAMETER
IOL = 1.6mA, IOH = -0.4mA, CL = 50pF (min) - for CL greater than 50pF, access time is derated by 0.15ns per pF.
(11) TELS2X
(12) TDVWH
(13) TWHDX
(14) TWLS1H
(15) TWLEH
(16) TS1LWH
(17) TELWH
(18) TWLWH
(19) TELEL
(1)
(2)
(3)
(4)
(5)
(6)
(7)
(8)
(9)
SYMBOL
TABLE 2. HM-6551/883 A.C. ELECTRICAL PERFORMANCE SPECIFICATIONS
TELQV
TAVQV
TS1LQX
TWLQZ
TS1HQZ
TELEH
TEHEL
TAVEL
TS2LEL
VCC = 4.5 and
5.5V
VCC = 4.5 and
5.5V, Note 3
VCC = 4.5 and
5.5V
VCC = 4.5 and
5.5V
VCC = 4.5 and
5.5V
VCC = 4.5 and
5.5V
VCC = 4.5 and
5.5V
VCC = 4.5 and
5.5V
VCC = 4.5 and
5.5V
VCC = 4.5 and
5.5V
VCC = 4.5 and
5.5V
VCC = 4.5 and
5.5V
VCC = 4.5 and
5.5V
VCC = 4.5 and
5.5V
VCC = 4.5 and
5.5V
VCC = 4.5 and
5.5V
VCC = 4.5 and
5.5V
VCC = 4.5 and
5.5V
VCC = 4.5 and
5.5V
CONDITIONS
(NOTES 1, 2)
GROUP A
GROUPS
9, 10, 11
9, 10, 11
9, 10, 11
9, 10, 11
9, 10, 11
9, 10, 11
9, 10, 11
9, 10, 11
9, 10, 11
9, 10, 11
9, 10, 11
9, 10, 11
9, 10, 11
9, 10, 11
9, 10, 11
9, 10, 11
9, 10, 11
9, 10, 11
9, 10, 11
HM-6551/883
SUB-
6-104
-55
-55
-55
-55
-55
-55
-55
-55
-55
-55
-55
-55
-55
-55
-55
-55
-55
-55
-55
TEMPERATURE
o
o
o
o
o
o
o
o
o
o
o
o
o
o
o
o
o
o
o
C T
C T
C T
C T
C T
C T
C T
C T
C T
C T
C T
C T
C T
C T
C T
C T
C T
C T
C T
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
+125
+125
+125
+125
+125
+125
+125
+125
+125
+125
+125
+125
+125
+125
+125
+125
+125
+125
+125
o
o
o
o
o
o
o
o
o
o
o
o
o
o
o
o
o
o
o
C
C
C
C
C
C
C
C
C
C
C
C
C
C
C
C
C
C
C
HM-6551B/883
MIN
220
100
100
120
120
120
120
120
320
40
40
5
0
0
0
-
-
-
-
MAX
220
220
130
130
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
LIMITS
HM-6551/883
MIN
300
100
150
180
180
180
180
180
400
50
50
5
0
0
0
-
-
-
-
MAX
300
300
150
150
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
UNITS
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns