UPI-41AH42AH

ACCESS CODE

The following table summarizes the access codes required to invoke the Sync Mode Signature Mode

and the Security Bit respectively Also the programming and verification modes are included for

comparison

Control Signals

Data Bus

Access Code

Modes

Port 2

Port 1

T0

Programming

0

0

1 HV

1

Address

Addr

Mode

0

1

1 HV

STB

Data In

Addr

Verification

0

0

1 HV

1

Address

Addr

Mode

11

1 HV

1

Data Out

Addr

Sync Mode

STB

0

HV 0

X

High

Signature Prog

0

0

1 HV

1

Addr (see Sig Mode Table)

0 0 0 0

1 1 1 1 X X 1

Mode

0

1

1 HV

STB

Data In

0 0 0

Verify

0

0

1 HV

1

Addr (see Sig Mode Table)

0 0 0

11

1 HV

1

Data Out

0 0 0

Security

Prog

0

0

1 HV

1

Address

0 0 0

BitByte

0

1

1 HV

STB

Data In

0 0 0

Verify

0

0

1 HV

1

Address

0 0 0

11

1 HV

1

Data Out

0 0 0

NOTES

ABSOLUTE MAXIMUM RATINGS

Ambient Temperature Under Bias

0 Cto a70 C

Storage Temperature

b

65 Cto a150 C

Voltage on Any Pin with

Respect to Ground

b

05V to a7V

Power Dissipation

15 W

NOTICE This is a production data sheet The specifi-

cations are subject to change without notice

WARNING Stressing the device beyond the ‘‘Absolute

Maximum Ratings’’ may cause permanent damage

These are stress ratings only Operation beyond the

‘‘Operating Conditions’’ is not recommended and ex-

tended exposure beyond the ‘‘Operating Conditions’’

may affect device reliability

Symbol

Parameter

UPI-41AH42AH

Units

Notes

Min

Max

Input Low Voltage (Except XTAL1 XTAL2 RESET)

b

05

08

V

Input Low Voltage (XTAL1 XTAL2 RESET)

b

05

06

V

Input High Voltage (Except XTAL1 XTAL2 RESET)

20

V

Input High Voltage (XTAL1 RESET)

35

V

Input High Voltage (XTAL2)

22

V

045

V

11