LH534A00
FEATURES • 524,288 words × 8 bit organization • Access time: 120 ns (MAX.) • Static operation • TTL compatible I/O • Three-state outputs • Single +5 V power supply • Power consumption: Operating: 357.5 mW (MAX.) Standby: 550 µW (MAX.) • Package: 32-pin, 8 × 20 mm2 TSOP (Type I) DESCRIPTION
The LH534A00 is a 4M-bit mask-programmable ROM organized as 524,288 × 8 bits. It is fabricated using silicon-gate CMOS process technology.
A11 A9 A8 A13 A14 A17 NC VCC A18 A16 A15 A12 A7 A6 A5 A4
CMOS 4M (512K × 8) MROM
PIN CONNECTIONS
32-PIN TSOP (Type I) TOP VIEW
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16
32 31 30 29 28 27 26 25 24 23 22 21 20 19 18 17
OE A10 CE D7 D6 D5 D4 D3 GND D2 D1 D0 A0 A1 A2 A3
534A00-1
Figure 1. Pin Connections for TSOP Package
1
LH534A00
CMOS 4M MROM
A18 9 A17 6 A16 A15 A14 A13 10 11 5 4
A11 1 A10 31 A9 A8 A7 A6 2 3 13 14
A5 15 A4 16 A3 17 A2 18 A1 19 A0 20
ADDRESS BUFFER
A12 12
ADDRESS DECODER
MEMORY MATRIX (524,288 x 8)
COLUMN SELECTOR
SENSE AMPLIFIER
CE 30
CE BUFFER
TIMING GENERATOR
OUTPUT BUFFER OE 32 OE BUFFER
8 24 VCC GND
21 D0
22 D1
23 D2
25 D3
26 D4
27 D5
28 D6
29 D7
534A00-2
Figure 2. LH534A00 Block Diagram
PIN DESCRIPTION
SIGNAL PIN NAME SIGNAL PIN NAME
A0 – A18 D0 – D7 CE
Address input Data output Chip enable input
OE VCC GND
Output enable input Power supply (+5 V) Ground
2
CMOS 4M MROM
LH534A00
TRUTH TABLE
CE OE DATA OUTPUT SUPPLY CURRENT
H L
X H L
High-Z High-Z Output
Standby Operating Operating
NOTE: X = H or L, High-Z = High-impedance
ABSOLUTE MAXIMUM RATINGS
PARAMETER SYMBOL RATING UNIT
Supply voltage Input voltage Output voltage Operating temperature Storage temperature
VCC VIN VOUT Topr Tstg
– 0.3 to +7.0 – 0.3 to V CC + 0.3 – 0.3 to V CC + 0.3 –20 to +70 –65 to +150
V V V °C °C
RECOMMENDED OPERATING CONDITIONS (TA = –20 °C to +70°C)
PARAMETER SYMBOL MIN. TYP. MAX. UNIT
Supply voltage
VCC
4.5
5.0
5.5
V
DC CHARACTERISTICS (VCC = 5 V ±10%, TA = –20°C to +70°C)
PARAMETER SYMBOL CONDITIONS MIN. MAX. UNIT NOTE
Input ‘High’ voltage Input ‘Low’ voltage Output ‘High’ voltage Output ‘Low’ voltage Input leakage current Output leakage current
VIH VIL VOH VOL | ILl | | ILO | ICC1 ICC2 ICC3 ICC4 I OH = – 400 µA I OL = 2 .0 mA V IN = 0 V to VCC V OUT = 0 V to VCC t RC = 120 ns t RC = 1 µ s t RC = 120 ns t RC = 1 µ s CE = V IH CE = V CC – 0.2 V f = 1 MHz T A = 25° C
2.2 – 0.3 2.4
VCC + 0.3 0.8
V V V
0.4 10 10 65 50 60 45 3 100 10 10
V µA µA mA mA mA mA mA µA pF pF 1 2 2 3 3
Operating current
Standby current Input capacitance Output capacitance
ISB1 ISB2 CIN COUT
NOTES: 1. CE/OE = VIH 2. VIN = VIH or VIL, C E = VIL, outputs open 3. VIN = (VCC – 0.2 V) or 0.2 V, C E = 0.2 V, outputs open
3
LH534A00
CMOS 4M MROM
AC CHARACTERISTICS (VCC = 5 V ±10%, TA = –20°C to +70°C)
PARAMETER SYMBOL MIN. MAX. UNIT NOTE
Read cycle time Address access time Chip enable access time Output enable delay time Output hold time CE to output in High-Z OE to output in High-Z
tRC tAA tACE tOE tOH tCHZ tOHZ
120 120 120 60 0 60
ns ns ns ns ns ns 1
NOTE: 1. This is the time required for the outputs to become high-impedance.
AC TEST CONDITIONS
PARAMETER RATING
Input voltage amplitude Input rise/fall time Input/output reference level Output load condition
0.4 to 2.6 V 10 ns 1.5 V 1 TTL + 100 pF
CAUTION
To stabilize the power supply, it is recommended that a high-frequency bypass capacitor be connected between the VCC pin and the GND pin.
tRC
A0 - A18 tAA (NOTE) CE tACE (NOTE) OE tOE (NOTE) tOHZ tOH tCHZ
D0 - D7
DATA VALID
NOTE: The output data becomes valid when the last intervals, tAA, tACE, or tOE, have concluded.
534A00-3
Figure 3. Timing Diagram
4
CMOS 4M MROM
LH534A00
PAGKAGE DIAGRAM
32TSOP (Type I) (TSOP032-P-0820)
0.30 [0.012] 0.10 [0.004] 32 0.50 [0.020] TYP. 17
18.60 [0.732] 18.20 [0.717]
20.30 [0.799] 19.70 [0.776]
19.00 [0.748]
1 8.20 [0.323] 7.80 [0.307]
16 0.20 [0.008] 0.10 [0.004] 1.10 [0.043] 0.90 [0.035] 1.20 [0.047] MAX. 0.425 [0.017] 0.20 [0.008] 0.00 [0.000]
0.15 [0.006]
DIMENSIONS IN MM [INCHES]
MAXIMUM LIMIT MINIMUM LIMIT
32TSOP
32-pin, 8 × 20 mm2 TSOP (Type I)
ORDERING INFORMATION
LH534A00 Device Type
T Package
32-pin, 8 x 20 mm2 TSOP (Type I) (TSOP032-P-0820)
CMOS 4M (512K x 8) Mask-Programmable ROM Example: LH534A00T (CMOS 4M (512K x 8) Mask-Programmable ROM, 32-pin, 8 x 20 mm2 TSOP (Type I))
534A00-4
5
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