HT9580 View Datasheet(PDF) - Holtek Semiconductor

Part Name

Description

Manufacturer

HT9580

Character Pager Controller

Holtek Semiconductor 

Preliminary

HT9580

A.C. Characteristics

Ta=25°C

Symbol

fOSC1

DOSC1

fX1

tRESET

Parameter

Main Clock (RC OSC)

Test Conditions

VDD Conditions

3V

¾

Main Clock Duty Cycle

3V

¾

Pager Clock Input (Crystal OSC) 3V

¾

RESET Input Pulse Width

¾

¾

Min.

76.8

40

32.768

1

Typ.

1000

50

76.8

¾

Max.

2000

60

153.6

¾

Unit

kHz

%

kHz

ms

Functional Description

Memory map

0000H

003B H

0040H

006D H

0080H

01C FH

01D 0H

01FFH

0200H

03FFH

1000H

2FFFH

3000H

4FFFH

5000H

I/O a n d D a ta S p a c e

6 0 B y te s

M e s s a g e B u ffe r

4 6 B y te s

G lo b a l D a ta M e m o r y

3 3 6 B y te s

S ta c k s

4 8 B y te s

G lo b a l D a ta M e m o r y

5 1 2 B y te s

In te r n a l/E x te r n a l

C h a ra c te r R O M

8 K b y te s

In te r n a l/E x te r n a l

SRAM

8 K b y te s

1000H

2FFFH

In te rn a l

C h a ra c te r R O M

S pace

(B a n k 0 )

8 K b y te s

B a n k 0 ~ B a n k 3 1 ( 2 M b its )

1000H

2FFFH

E x te rn a l

C h a ra c te r R O M

S pace

(B a n k 0 )

8 K b y te s

B a n k 0 ~ B a n k 3 1 ( 2 M b its )

P ro g ra m R O M S p a c e

2 8 K B y te s

BFFFH

C 000H

P ro g ra m R O M S p a c e

1 6 3 7 8 B y te s

FFFAH

FFFBH

FFFC H

FFFD H

FFFEH

FFFFH

N M I-L

N M I-H

R E S E T -L

R E S E T -H

IR Q -L

IR Q -H

3000H

4FFFH

In te rn a l

SRAM

S pace

(B a n k 0 )

8 K b y te s

B a n k 0 ~ B a n k 3 (3 2 K B y te s )

3000H

4FFFH

E x te rn a l

SRAM

S pace

(B a n k 0 )

8 K b y te s

B a n k 0 ~ B a n k 3 1 (2 5 6 K B y te s )

7

April 28, 2000

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