* Dollar jumps eyeing Fed rate hikes

* Russian stocks jump, rouble retraces some declines

* S.African rand falls as c.bank delivers 'measured' rate hike

* Chile's peso slips back after 150-bps rate hike

By Susan Mathew and Shreyashi Sanyal

Jan 27 (Reuters) - Latin American currencies weakened on Thursday after the dollar jumped following the Federal Reserve's signal to raise interest rates soon, while Russia's rouble jumped after the Kremlin left the door open for dialogue over the Ukraine crisis.

Mexico's peso MXN= dipped 0.2%, giving back gains from earlier in the session, while Brazil's real BRBY remained range bound.

Chile's peso CLP= fell 0.3% after rising 1% following the central bank's surprise 150-basis-point hike to its key lending rate at 5.5% overnight, more than the 125 basis points expected by markets.

"The decision by Chile's central bank to deliver a surprisingly large 150bp rate hike yesterday, to 5.50%, supports our view that the tightening cycle will go further than the path it had previously signaled," said Nikhil Sanghani, emerging markets economist at Capital Economics.

"We think that the dramatic upward shift in investors' rate expectations has probably gone a bit too far."

Moody's on Thursday said Chile's newly elected administration's rejection of additional pensions withdrawals is credit-positive.

Further pressuring emerging market currencies was a stronger dollar USD= and higher U.S. Treasury yields following hawkish Federal Reserve commentary that spurred bets of five or more rate hikes this year.

Strong U.S. economic growth data on Thursday lent weight to the speculations.

The rouble RUB= , however, jumped 2% to 77.8 a dollar, retracing losses that pushed it beyond 80 on Wednesday.

Kremlin spokesman Dmitry Peskov said U.S. and NATO statements that Russia's main demands around post-Cold War security arrangements in Europe were unacceptable did not leave much room for optimism, but stopped short of closing the door on diplomacy.

Russia said a pullback in NATO military forces from Eastern Europe would help reduce military tensions in the region.

Sovereign dollar bonds issued by Ukraine and Russia rose, and the cost of insuring exposure to Russia eased. Russia's main stocks index .IMOEX jumped 2.9%.

"We think Russian assets would not sell off as much this time around, unless the worst-case scenario materializes," said strategists at TD Securities.

"We believe that the (central bank) is aware of these risks and, while likely downplaying them in official communications, may adjust the trajectory of monetary tightening to pre-empt future moves," they said on Wednesday, adding they now expect a 100-basis-point hike from the central bank next month.

Meanwhile, Xiomara Castro was sworn in as Honduras' first female president, and faces tests over a sharply divided Congress and relations with China.

South Africa's rand ZAR= fell 1.1% after the country's central bank raised interest rates by the expected margin and suggested it would only increase rates gradually in the future.

China's yuan CNY= dropped 0.7%, while Turkey's lira lost 0.4%

Key Latin American stock indexes and currencies at 1952 GMT:

Stock indexes

Latest

Daily %

change MSCI Emerging Markets .MSCIEF

1190.71

-1.71 MSCI LatAm .MILA00000PUS

2245.13

0.04 Brazil Bovespa

.BVSP

112018.97

0.66 Mexico IPC

.MXX

50520.36

-1.01 Chile IPSA

.SPIPSA

4562.74

0.23 Argentina MerVal

.MERV

86097.87

0.368 Colombia COLCAP

.COLCAP

1520.98

-0.08

Currencies

Latest

Daily %

change Brazil real

BRBY

5.4232

0.27 Mexico peso

MXN=D2

20.7876

-0.27 Chile peso

CLP=CL

802.3

-0.22 Colombia peso COP=

3956.63

-0.82 Peru sol

PEN=PE

3.8274

-0.06 Argentina peso (interbank)

104.7600

-0.05 ARS=RASL

Argentina peso (parallel) ARSB=

219.5

0.68

Reporting by Susan Mathew and Shreyashi Sanyal in Bengaluru; editing by Jonathan Oatis